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Imidazole

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on the reactants. These methods are commonly categorized by which and how many bonds form to make the imidazole rings. For example, the Debus method forms the (1,2), (3,4), and (1,5) bonds in imidazole, using each reactant as a fragment of the ring, and thus this method would be a three-bond-forming
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Zolfigol, Mohammad A.; Khazaei, Ardeshir; Moosavi-Zare, Ahmad R.; Zare, Abdolkarim; Kruger, Hendrik G.; Asgari, Zhila; Khakyzadeh, Vahid; Kazem-Rostami, Masoud (2012-04-06). "Design of Ionic Liquid 3-Methyl-1-sulfonic Acid Imidazolium Nitrate as Reagent for the Nitration of Aromatic Compounds by in
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Van Leusen, Albert M.; Wildeman, Jurjen; Oldenziel, Otto H. (1977). "Chemistry of sulfonylmethyl isocyanides. 12. Base-induced cycloaddition of sulfonylmethyl isocyanides to carbon, nitrogen double bonds. Synthesis of 1,5-disubstituted and 1,4,5-trisubstituted imidazoles from aldimines and imidoyl
1518:. The N3 of the imidazole compound binds to the heme iron atom of ferric cytochrome P450, whereas the N4 of the triazoles bind to the heme group. The triazoles have been shown to have a higher specificity for the cytochrome P450 than imidazoles, thereby making them more potent than the imidazoles. 1352:. The Van Leusen Imidazole Synthesis allows the preparation of imidazoles from aldimines by reaction with tosylmethyl isocyanide (TosMIC). The reaction has later been expanded to a two-step synthesis in which the aldimine is generated in situ: the Van Leusen Three-Component Reaction (vL-3CR). 2323: 1632:
Imidazole is a suitable buffer for pH 6.2 to 7.8,. Pure imidazole has essentially no absorbance at protein relevant wavelengths (280 nm), however lower purities of imidazole can give notable absorbance at 280 nm. Imidazole can interfere with the
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of imidazole is 14.5, making it less acidic than carboxylic acids, phenols, and imides, but slightly more acidic than alcohols. The acidic proton is the one bound to nitrogen. Deprotonation gives the imidazolide anion, which is symmetrical. As a base, the
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Khalid, M. H.; Tokunaga, Y.; Caputy, A. J.; Walters, E. (2005). "Inhibition of tumor growth and prolonged survival of rats with intracranial gliomas following administration of clotrimazole".
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Sunderland, M. R.; Cruickshank, R. H.; Leighs, S. J. (2014). "The efficacy of antifungal azole and antiprotozoal compounds in protection of wool from keratin-digesting insect larvae".
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Imidazole is often used in protein purification, where recombinant proteins with polyhistidine tags are immobilized onto nickel resins and eluted with a high imidazole concentration.
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Crouch, R. David; Howard, Jessica L.; Zile, Jennifer L.; Barker, Kathryn H. (2006). "Microwave-Mediated Synthesis of Lophine: Developing a Mechanism To Explain a Product".
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condense to form imidazole (glyoxaline, as it was originally named). This synthesis, while producing relatively low yields, is still used for generating
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This is a general method that is able to give good yields for substituted imidazoles. In essence, it is an adaptation of the Debus method called the
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column. An excess of imidazole is passed through the column, which displaces the His-tag from nickel coordination, freeing the His-tagged proteins.
2428: 1049:. The basic site is the nitrogen with the lone pair (and not bound to hydrogen). Protonation gives the imidazolium cation, which is symmetrical. 1255: 1119: 3582: 2866: 2686: 2574: 2067: 2042: 2017: 1992: 1967: 1853: 2714: 612: 1263: 2647: 1904: 1597: 2545: 2163: : 1–6. Hantzsch proposed a reform of the nomenclature of azole compounds, including a proposal to call the heterocyclic ring C 1602:
Imidazole and its derivatives have high affinity for metal cations. One of the applications of imidazole is in the purification of
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Molina, F; Rueda, A; Bosque-Sendra, J.M; Megias, L (1996). "Determination of proteins in the presence of imidazole buffers".
679: 1122:. Many of these syntheses can also be applied to different substituted imidazoles and imidazole derivatives by varying the 2916: 1204: 786: 1158: 846: 993:(a pair of electrons from the protonated nitrogen atom and one from each of the remaining four atoms of the ring). Some 790: 772: 385: 727: 3599: 2318: 416: 722: 2657: 1837: 1045:
to avoid confusion between the two) is approximately 7, making imidazole approximately sixty times more basic than
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ring but feature varied substituents. This ring system is present in important biological building blocks, such as
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Imidazole itself has few direct applications. It is instead a precursor to a variety of agrichemicals, including
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Imidazole-based histidine compounds play a very important role in intracellular buffering. Histidine can be
1925: 798: 717: 282: 3554: 3201: 1426: 978: 958: 2454:"Effect of anti-fungal imidazoles on mRNA levels and enzyme activity of inducible nitric oxide synthase" 2389: 2314: 1484: 1449: 1410: 1021: 994: 951: 750: 710: 647: 2269:(The purified substance constitutes the oxalic salt of a base, which I will designate as "glyoxaline".) 1514:. The difference between the imidazoles and the triazoles involves the mechanism of inhibition of the 1286:. This reaction will give substantial yields only if the 1-vinyltetrazole is made efficiently from an 1061:, although various imidazole derivatives had been discovered as early as the 1840s. It was shown that 224: 2852: 2347: 2288: 2194: 2126: 1541: 106: 1258:. The starting materials are substituted glyoxal, aldehyde, amine, and ammonia or an ammonium salt. 3626: 3344: 3160: 1834:
Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book)
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Imidazole substituents are found in many pharmaceuticals. Synthetic imidazoles are present in many
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Walba, H.; Isensee, R. W. (1961). "Acidity constants of some arylimidazoles and their cations".
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Imidazole is incorporated into many important biological compounds. The most pervasive is the
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Rosemeyer, H. (2004). "The Chemodiversity of Purine as a Constituent of Natural Products".
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Ebel, K., Koehler, H., Gamer, A. O., & Jäckh, R. (2002). "Imidazole and Derivatives".
2152: 2133: 1515: 1321: 1290:, such as 2-tributylstannyltetrazole. The reaction, shown below, produces imidazole when R 1188: 924: 313: 244: 148: 2351: 2292: 2198: 437: 286: 204: 3593: 3524: 3467: 3437: 3422: 3190: 3079: 2478: 2469: 2453: 1681: 1621: 1430: 928: 817: 760: 604: 78: 1020:, which is to say that it can function both as an acid and as a base. As an acid, the 50: 3620: 3427: 3323: 3297: 3104: 3056: 3022: 2977: 2947: 2775: 2611: 1713: 1677: 1457: 1414: 568: 558: 275: 2390:"Design, synthesis, and evaluation of potential inhibitors of nitric oxide synthase" 2112: 3549: 3534: 3447: 3377: 3293: 3127: 3122: 3114: 3109: 3099: 3089: 3007: 2997: 2992: 2982: 2967: 2957: 2942: 2883: 2879: 2216: 1584: 1562: 1554: 1511: 1507: 1496: 1488: 1453: 1445: 1422: 1100: 1066: 1002: 93: 2388:
Castaño, T.; Encinas, A.; Pérez, C.; Castro, A.; Campillo, N. E.; Gil, C. (2008).
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Bogle, R. G.; Whitley, G. S.; Soo, S. C.; Johnstone, A. P.; Vallance, P. (1994).
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The substituted imidazole derivatives are valuable in treatment of many systemic
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Imidazole can also be formed in a vapor-phase reaction. The reaction occurs with
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with heat. The product will be a 1,4-disubstituted imidazole, but here since R
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Biochemical Adaptation: Mechanisms and Process in Physiological Evolution
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For comparison, another group of azoles is the triazoles, which includes
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Imidazole is a planar 5-membered ring, that exists in two equivalent
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molecule, found in tea leaves and coffee beans, that stimulates the
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Except where otherwise noted, data are given for materials in their
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The (1,2) and (2,3) bonds can be formed by treating a 1,2-diamino
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synthesis. A small sampling of these methods is presented below.
2540:(6th ed.). Lippincott Williams & Wilkins. p. 930. 1740: 1521:
Some imidazole derivatives show effects on insects, for example
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atom. Imidazole is a highly polar compound, as evidenced by its
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The name "imidazole" was coined in 1887 by the German chemist
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Imidazole can be synthesized by numerous methods besides the
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Christen, Dines; Griffiths, John H.; Sheridan, John (1981).
1613:(IMAC). Imidazole is used to elute tagged proteins bound to 1306: 1262: 1236: 1203: 1157: 1135:
The (1,5) or (3,4) bond can be formed by the reaction of an
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Davis, Jennifer L.; Papich, Mark G.; Heit, Mark C. (2009).
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Imidazole was first reported in 1858 by the German chemist
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are known as imidazolium salts (for example, imidazolium
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89 to 91 °C (192 to 196 °F; 362 to 364 K)
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fluxes, and interference with translation initiation.
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can also be employed to form imidazoles starting from
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forms because hydrogen can be bound to one or another
2569:(9th ed.). Wiley-Blackwell. pp. 1019–1020. 1786:
Imidazole has low acute toxicity as indicated by the
3410: 3386: 3367: 3343: 3336: 3281: 3260: 3237: 3211: 3200: 3159: 3136: 3046: 2927: 2911: 2900: 2891: 2234:[On the reaction of ammonia upon glyoxal]. 1656:Salts of imidazole where the imidazole ring is the 1214:The (1,2) and (3,4) bonds can also be formed from 989:due to the presence of a planar ring containing 6 2764:Journal of Pharmaceutical and Biomedical Analysis 2232:"Ueber die Einwirkung des Ammoniaks auf Glyoxal" 357: 1452:, which makes them interesting drug targets in 1147:. The example below applies to imidazole when R 147: 2631:Ullmann's Encyclopedia of Industrial Chemistry 2565:. In Riviere, Jim E.; Papich, Mark G. (eds.). 2138:Berichte der deutschen chemischen Gesellschaft 1688:are also well known; these salts are known as 1460:relate to the downregulation of intracellular 1444:A number of substituted imidazoles, including 1379:, e.g. by binding metal cofactors, as seen in 2860: 1684:. Salts where a deprotonated imidazole is an 1525:exhibits a strong anti-feeding effect on the 1429:. It is present in the anticancer medication 8: 2662:: CS1 maint: multiple names: authors list ( 2563:"Chapter 39: Antifungal and Antiviral Drugs" 1676:of imidazole. These salts have been used as 1529:-digesting Australian carpet beetle larvae 3340: 3208: 2924: 2908: 2897: 2867: 2853: 2845: 461:InChI=1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5) 436: 285: 243: 29: 2806:Situ Generation of NO2 in Acidic Media". 2477: 2206: 2171:(NH)N "imidazole" ; see pp. 2 and 4. 1611:immobilised metal affinity chromatography 997:structures of imidazole are shown below: 471:InChI=1/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5) 393: 2681:. Oxford: Clarendon Press. p. 325. 2567:Veterinary Pharmacology and Therapeutics 2373:Hochachka, P. W.; Somero, G. N. (2002). 1958:; Rees, C.W.R.; Scriven, E.F.V. (1984). 1726:or imidazoline, an analog where the 4,5- 1620:attached to the surface of beads in the 1575: 1356:Biological significance and applications 2623: 2621: 2033:Pozharskii, A. F.; et al. (1997). 1824: 489: 457: 432: 263: 2655: 1421:medications. Imidazole is part of the 1256:Debus-Radziszewski imidazole synthesis 1191:. A dehydrogenating catalyst, such as 810:146 °C (295 °F; 419 K) 573:256 °C (493 °F; 529 K) 276: 2155:(General observations about azoles), 2125:Hantzsch, A. and Weber, J. H. (1887) 1985:Imidazole and Benzimidazole Synthesis 1692:(for example, sodium imidazolate, NaC 1111:, forming 2,4,5-triphenylimidazole (" 464:Key: RAXXELZNTBOGNW-UHFFFAOYSA-N 223: 203: 7: 2377:. New York: Oxford University Press. 2146:"Allegemeine Bemerkungen über Azole" 1960:Comprehensive Heterocyclic Chemistry 1583:is one of several imidazole-derived 1483:. Imidazoles belong to the class of 1278:Imidazole can be synthesized by the 1777:, analogs with three nitrogen atoms 1668:). These salts are formed from the 1398:(hives) when it is produced during 348: 332: 2717:from the original on 25 April 2021 2470:10.1111/j.1476-5381.1994.tb14881.x 2010:Ring Nitrogen and Key Biomolecules 1598:Transition metal imidazole complex 903:Many natural products, especially 25: 1962:. Vol. 5. pp. 469–498. 1274:Formation from other heterocycles 1038:of the conjugate acid (cited as p 881:solution. In chemistry, it is an 2808:The Journal of Organic Chemistry 2743:from the original on 13 May 2021 2237:Annalen der Chemie und Pharmacie 2187:Zeitschrift für Naturforschung A 2035:Heterocycles in Life and Society 1936:from the original on 10 May 2023 1218:-substituted α-aminoketones and 1179:, at high temperatures, with an 1095:modification, the reactants are 824: 726: 721: 716: 92: 3350:thymidylate synthase inhibitors 2434:from the original on 2023-03-06 2256:from the original on 2020-05-30 1907:from the original on 2018-10-19 1793:of 970 mg/kg (Rat, oral). 1371:. Histidine is present in many 820:(at 25 °C , 100 kPa). 1838:The Royal Society of Chemistry 1767:, an analog with two adjacent 1448:, are selective inhibitors of 680:Occupational safety and health 1: 2679:Data for biochemical research 2538:Comprehensive Pharmacy Review 1539:with the common clothes moth 2776:10.1016/0731-7085(95)01615-5 2340:Journal of Organic Chemistry 2085:Chemistry & Biodiversity 2770:(3). Elsevier BV: 273–280. 2515:10.3171/jns.2005.103.1.0079 1846:10.1039/9781849733069-FP001 543:White or pale yellow solid 64: 36: 3658: 1983:Grimmett, M. Ross (1997). 1736:, an analog with only one 1628:Use in biological research 1595: 1472:Pharmaceutical derivatives 535:68.077 g/mol 3577: 3418:bromochlorosalicylanilide 3388:Aminoacyl tRNA synthetase 2677:Dawson, R. M. C. (1986). 2409:10.1016/j.bmc.2008.04.036 2058:Gilchrist, T. L. (1985). 2037:. John Wiley & Sons. 2012:. Kluwer Academic Press. 1716:, an analog with a fused 1652:Simple imidazolium cation 1367:, which has an imidazole 1077:-substituted imidazoles. 814: 697: 677: 672: 626: 500: 480: 448: 131: 121: 105: 100: 91: 63: 35: 2640:10.1002/14356007.a13_661 2604:10.1177/0040517513515312 2399:(Submitted manuscript). 2250:10.1002/jlac.18581070209 2230:Debus, Heinrich (1858). 1930:pubchem.ncbi.nlm.nih.gov 1241:Formation of three bonds 965:Structure and properties 919:and the related hormone 773:Precautionary statements 2634:. Weinheim: Wiley-VCH. 2315:US patent 6,177,575 1549:Industrial applications 1532:Anthrenocerus australis 1250:Formation of four bonds 892:, and has non-adjacent 653:Planar 5-membered ring 3202:Squalene monooxygenase 3039:Systemic: ketoconazole 2097:10.1002/cbdv.200490033 2060:Heterocyclic Chemistry 1653: 1592:Coordination chemistry 1588: 1516:cytochrome P450 enzyme 1427:central nervous system 1394:. Histamine can cause 1311: 1268: 1242: 1209: 1208:Formation of two bonds 1171:Formation of two bonds 1163: 1086: 1006: 979:electric dipole moment 959:Arthur Rudolf Hantzsch 82: 73: 54: 45: 3637:Simple aromatic rings 3230:Systemic: terbinafine 2536:Leon Shargel (2007). 2208:10.1515/zna-1981-1220 2008:Brown, E. G. (1998). 1840:. 2014. p. 140. 1651: 1579: 1450:nitric oxide synthase 1310: 1266: 1240: 1207: 1162:Formation of one bond 1161: 1131:Formation of one bond 1085: 1005: 648:Coordination geometry 81: 72: 53: 44: 3518:Whitfield's ointment 3345:Pyrimidine analogues 3161:Polyene antimycotics 1708:Related heterocycles 1542:Tineola bisselliella 1437:by interfering with 1324:, and hydrogen over 126:Glyoxaline (archaic) 107:Preferred IUPAC name 2360:10.1021/jo00427a012 2352:1977JOrgC..42.1153A 2293:2006JChEd..83.1658C 2199:1981ZNatA..36.1378C 1883:10.1021/jo01066a039 1672:or substitution at 1635:Lowry protein assay 1523:sulconazole nitrate 1342:Van Leusen reaction 1336:Van Leusen reaction 1267:Arduengo imidazoles 1109:glacial acetic acid 935:, and the sedative 580:Solubility in water 185:Beilstein Reference 32: 3604:Never to phase III 3508:tribromometacresol 3478:sodium thiosulfate 3473:selenium disulfide 3369:Mitotic inhibitors 2397:Bioorg. Med. Chem. 2301:10.1021/ed083p1658 2157:Annalen der Chemie 2151:2020-05-30 at the 2132:2020-05-30 at the 1987:. Academic Press. 1903:. Molekula Group. 1815:(dihydroimidazole) 1680:and precursors to 1654: 1644:Salts of imidazole 1589: 1312: 1288:organotin compound 1269: 1243: 1210: 1164: 1087: 1007: 888:, classified as a 865:with the formula C 847:Infobox references 83: 74: 55: 46: 30: 3614: 3613: 3406: 3405: 3332: 3331: 3283:β-glucan synthase 3277: 3276: 3256: 3255: 3155: 3154: 2820:10.1021/jo300137w 2688:978-0-19-855299-4 2658:cite encyclopedia 2576:978-0-8138-2061-3 2403:(11): 6193–6206. 2193:(12): 1378–1385. 2069:978-0-582-01421-3 2044:978-0-471-96033-1 2019:978-94-011-4906-8 1994:978-0-08-053445-9 1969:978-0-08-042072-1 1855:978-0-85404-182-4 1808:4-Methylimidazole 1803:1-Methylimidazole 1537:econazole nitrate 1487:, which includes 1485:azole antifungals 1124:functional groups 946:ring, it forms a 898:meta-substitution 855:Chemical compound 853: 852: 751:Hazard statements 634:Crystal structure 553:1.23 g/cm, solid 417:CompTox Dashboard 173:Interactive image 87: 86: 59: 58: 27:Chemical compound 16:(Redirected from 3649: 3513:undecylenic acid 3463:potassium iodide 3341: 3209: 2925: 2909: 2898: 2869: 2862: 2855: 2846: 2840: 2839: 2814:(7): 3640–3645. 2802: 2796: 2795: 2759: 2753: 2752: 2750: 2748: 2733: 2727: 2726: 2724: 2722: 2707: 2701: 2700: 2674: 2668: 2667: 2661: 2653: 2625: 2616: 2615: 2587: 2581: 2580: 2558: 2552: 2551: 2533: 2527: 2526: 2498: 2492: 2491: 2481: 2464:(4): 1257–1261. 2458:Br. J. Pharmacol 2449: 2443: 2442: 2440: 2439: 2433: 2394: 2385: 2379: 2378: 2370: 2364: 2363: 2346:(7): 1153–1159. 2334: 2328: 2327: 2326: 2322: 2311: 2305: 2304: 2276: 2270: 2264: 2262: 2261: 2227: 2221: 2220: 2210: 2178: 2172: 2123: 2117: 2116: 2080: 2074: 2073: 2055: 2049: 2048: 2030: 2024: 2023: 2005: 1999: 1998: 1980: 1974: 1973: 1952: 1946: 1945: 1943: 1941: 1922: 1916: 1915: 1913: 1912: 1893: 1887: 1886: 1877:(8): 2789–2791. 1866: 1860: 1859: 1832:"Front Matter". 1829: 1724:Dihydroimidazole 1433:, which combats 1419:antihypertensive 1284:1-vinyltetrazole 942:When fused to a 925:antifungal drugs 863:organic compound 837: 831: 828: 827: 800: 796: 792: 788: 784: 780: 766: 762: 758: 730: 725: 720: 508:Chemical formula 441: 440: 425: 423: 397: 361: 350: 336: 314:Gmelin Reference 297: 289: 278: 267: 247: 227: 207: 175: 151: 96: 65: 37: 33: 21: 3657: 3656: 3652: 3651: 3650: 3648: 3647: 3646: 3617: 3616: 3615: 3610: 3609: 3594:Clinical trials 3573: 3402: 3382: 3363: 3348: 3328: 3285: 3273: 3252: 3233: 3229: 3204: 3196: 3188: 3163: 3151: 3132: 3085:fosravuconazole 3042: 2918: 2917:lanosterol 14α- 2904: 2893: 2887: 2873: 2843: 2804: 2803: 2799: 2761: 2760: 2756: 2746: 2744: 2735: 2734: 2730: 2720: 2718: 2709: 2708: 2704: 2689: 2676: 2675: 2671: 2654: 2650: 2627: 2626: 2619: 2589: 2588: 2584: 2577: 2560: 2559: 2555: 2548: 2535: 2534: 2530: 2500: 2499: 2495: 2451: 2450: 2446: 2437: 2435: 2431: 2392: 2387: 2386: 2382: 2372: 2371: 2367: 2336: 2335: 2331: 2324: 2319:Arduengo, A. J. 2313: 2312: 2308: 2278: 2277: 2273: 2259: 2257: 2229: 2228: 2224: 2180: 2179: 2175: 2170: 2166: 2153:Wayback Machine 2134:Wayback Machine 2124: 2120: 2082: 2081: 2077: 2070: 2057: 2056: 2052: 2045: 2032: 2031: 2027: 2020: 2007: 2006: 2002: 1995: 1982: 1981: 1977: 1970: 1956:Karitzky, A. R. 1954: 1953: 1949: 1939: 1937: 1924: 1923: 1919: 1910: 1908: 1895: 1894: 1890: 1868: 1867: 1863: 1856: 1831: 1830: 1826: 1822: 1799: 1791: 1784: 1710: 1703: 1699: 1695: 1682:stable carbenes 1646: 1630: 1600: 1594: 1551: 1474: 1358: 1322:ethylenediamine 1301: 1297: 1293: 1276: 1252: 1229: 1225: 1199:, is required. 1189:carboxylic acid 1173: 1154: 1150: 1133: 1055: 1044: 1037: 1028: 1014: 967: 914: 910: 876: 872: 868: 856: 849: 844: 843: 842:  ?) 833: 829: 825: 821: 775: 753: 739: 713: 690: 662: 650: 636: 618: 599: 582: 524: 520: 516: 510: 496: 493: 488: 487: 476: 473: 472: 466: 465: 462: 456: 455: 444: 426: 419: 400: 380: 364: 351: 339: 316: 307: 270: 250: 230: 210: 187: 178: 165: 154: 141: 127: 125: 117: 116: 28: 23: 22: 15: 12: 11: 5: 3655: 3653: 3645: 3644: 3642:Aromatic bases 3639: 3634: 3629: 3619: 3618: 3612: 3611: 3608: 3607: 3606: 3605: 3602: 3591: 3585: 3579: 3578: 3575: 3574: 3572: 3571: 3566: 3561: 3552: 3547: 3542: 3537: 3532: 3527: 3525:citronella oil 3521: 3520: 3515: 3510: 3505: 3500: 3495: 3490: 3485: 3480: 3475: 3470: 3468:salicylic acid 3465: 3460: 3455: 3450: 3445: 3440: 3438:crystal violet 3435: 3430: 3425: 3423:chlorophetanol 3420: 3414: 3412: 3408: 3407: 3404: 3403: 3401: 3400: 3393: 3391: 3384: 3383: 3381: 3380: 3373: 3371: 3365: 3364: 3362: 3361: 3354: 3352: 3338: 3334: 3333: 3330: 3329: 3327: 3326: 3321: 3315: 3310: 3305: 3300: 3289: 3287: 3279: 3278: 3275: 3274: 3272: 3271: 3264: 3262: 3258: 3257: 3254: 3253: 3251: 3250: 3243: 3241: 3235: 3234: 3232: 3231: 3224: 3217: 3215: 3206: 3198: 3197: 3195: 3194: 3191:amphotericin B 3183: 3178: 3171: 3169: 3157: 3156: 3153: 3152: 3150: 3149: 3142: 3140: 3134: 3133: 3131: 3130: 3125: 3118: 3117: 3112: 3107: 3102: 3097: 3092: 3087: 3082: 3080:fosfluconazole 3077: 3070: 3069: 3064: 3059: 3052: 3050: 3044: 3043: 3041: 3040: 3036: 3035: 3030: 3025: 3020: 3015: 3010: 3005: 3000: 2995: 2990: 2985: 2980: 2975: 2970: 2965: 2960: 2955: 2950: 2945: 2940: 2933: 2931: 2922: 2906: 2895: 2889: 2888: 2874: 2872: 2871: 2864: 2857: 2849: 2842: 2841: 2797: 2754: 2728: 2711:"1H-Imidazole" 2702: 2687: 2669: 2649:978-3527306732 2648: 2617: 2598:(9): 924–931. 2592:Textile Res. J 2582: 2575: 2553: 2546: 2528: 2493: 2444: 2380: 2365: 2329: 2306: 2271: 2244:(2): 199–208. 2222: 2173: 2168: 2164: 2118: 2091:(3): 361–401. 2075: 2068: 2062:. Bath Press. 2050: 2043: 2025: 2018: 2000: 1993: 1975: 1968: 1947: 1917: 1888: 1861: 1854: 1823: 1821: 1818: 1817: 1816: 1810: 1805: 1798: 1795: 1789: 1783: 1780: 1779: 1778: 1772: 1762: 1753: 1744: 1731: 1721: 1709: 1706: 1701: 1697: 1693: 1645: 1642: 1629: 1626: 1622:chromatography 1596:Main article: 1593: 1590: 1550: 1547: 1473: 1470: 1431:mercaptopurine 1388:decarboxylated 1357: 1354: 1338: 1337: 1314: 1313: 1299: 1295: 1291: 1275: 1272: 1271: 1270: 1251: 1248: 1247: 1246: 1245: 1244: 1227: 1223: 1212: 1211: 1172: 1169: 1168: 1167: 1152: 1148: 1139:and an α-amino 1132: 1129: 1089: 1088: 1059:Heinrich Debus 1054: 1051: 1042: 1035: 1026: 1013: 1010: 1009: 1008: 966: 963: 929:nitroimidazole 912: 908: 874: 870: 866: 854: 851: 850: 845: 823: 822: 818:standard state 815: 812: 811: 808: 802: 801: 795:P305+P351+P338 776: 771: 768: 767: 754: 749: 746: 745: 740: 735: 732: 731: 714: 709: 706: 705: 695: 694: 691: 688: 685: 684: 675: 674: 670: 669: 663: 658: 655: 654: 651: 646: 643: 642: 637: 632: 629: 628: 624: 623: 620: 616: 609: 608: 605:conjugate acid 603:6.95 (for the 601: 597: 587: 586: 583: 578: 575: 574: 571: 565: 564: 561: 555: 554: 551: 545: 544: 541: 537: 536: 533: 527: 526: 522: 518: 514: 511: 506: 503: 502: 498: 497: 495: 494: 491: 483: 482: 481: 478: 477: 475: 474: 470: 469: 467: 463: 460: 459: 451: 450: 449: 446: 445: 443: 442: 429: 427: 415: 412: 411: 408: 402: 401: 399: 398: 390: 388: 382: 381: 379: 378: 374: 372: 366: 365: 363: 362: 354: 352: 344: 341: 340: 338: 337: 329: 327: 321: 320: 317: 312: 309: 308: 306: 305: 301: 299: 291: 290: 280: 272: 271: 269: 268: 260: 258: 252: 251: 249: 248: 240: 238: 232: 231: 229: 228: 220: 218: 212: 211: 209: 208: 200: 198: 192: 191: 188: 183: 180: 179: 177: 176: 168: 166: 159: 156: 155: 153: 152: 144: 142: 137: 134: 133: 129: 128: 123: 119: 118: 110: 109: 103: 102: 98: 97: 89: 88: 85: 84: 75: 61: 60: 57: 56: 47: 26: 24: 18:Imidazole ring 14: 13: 10: 9: 6: 4: 3: 2: 3654: 3643: 3640: 3638: 3635: 3633: 3630: 3628: 3625: 3624: 3622: 3603: 3601: 3598: 3597: 3595: 3592: 3589: 3586: 3584: 3581: 3580: 3576: 3570: 3567: 3565: 3562: 3560: 3556: 3553: 3551: 3548: 3546: 3543: 3541: 3538: 3536: 3533: 3531: 3528: 3526: 3523: 3522: 3519: 3516: 3514: 3511: 3509: 3506: 3504: 3501: 3499: 3496: 3494: 3491: 3489: 3486: 3484: 3481: 3479: 3476: 3474: 3471: 3469: 3466: 3464: 3461: 3459: 3456: 3454: 3451: 3449: 3446: 3444: 3441: 3439: 3436: 3434: 3431: 3429: 3428:chlorphenesin 3426: 3424: 3421: 3419: 3416: 3415: 3413: 3409: 3399: 3395: 3394: 3392: 3389: 3385: 3379: 3375: 3374: 3372: 3370: 3366: 3360: 3356: 3355: 3353: 3351: 3346: 3342: 3339: 3337:Intracellular 3335: 3325: 3324:ibrexafungerp 3322: 3319: 3316: 3314: 3311: 3309: 3306: 3304: 3301: 3299: 3298:anidulafungin 3295: 3294:echinocandins 3291: 3290: 3288: 3284: 3280: 3270: 3266: 3265: 3263: 3259: 3249: 3245: 3244: 3242: 3240: 3236: 3228: 3225: 3223: 3219: 3218: 3216: 3214: 3210: 3207: 3203: 3199: 3192: 3187: 3184: 3182: 3179: 3177: 3173: 3172: 3170: 3167: 3162: 3158: 3148: 3144: 3143: 3141: 3139: 3135: 3129: 3126: 3124: 3120: 3119: 3116: 3113: 3111: 3108: 3106: 3105:oteseconazole 3103: 3101: 3098: 3096: 3095:isavuconazole 3093: 3091: 3088: 3086: 3083: 3081: 3078: 3076: 3072: 3071: 3068: 3065: 3063: 3060: 3058: 3057:efinaconazole 3054: 3053: 3051: 3049: 3045: 3038: 3037: 3034: 3031: 3029: 3026: 3024: 3023:sertaconazole 3021: 3019: 3016: 3014: 3011: 3009: 3006: 3004: 3001: 2999: 2996: 2994: 2991: 2989: 2986: 2984: 2981: 2979: 2978:fenticonazole 2976: 2974: 2971: 2969: 2966: 2964: 2961: 2959: 2956: 2954: 2951: 2949: 2948:chlormidazole 2946: 2944: 2941: 2939: 2935: 2934: 2932: 2930: 2926: 2923: 2920: 2914: 2910: 2907: 2903: 2899: 2896: 2890: 2885: 2881: 2877: 2870: 2865: 2863: 2858: 2856: 2851: 2850: 2847: 2837: 2833: 2829: 2825: 2821: 2817: 2813: 2809: 2801: 2798: 2793: 2789: 2785: 2781: 2777: 2773: 2769: 2765: 2758: 2755: 2742: 2738: 2732: 2729: 2716: 2712: 2706: 2703: 2698: 2694: 2690: 2684: 2680: 2673: 2670: 2665: 2659: 2651: 2645: 2641: 2637: 2633: 2632: 2624: 2622: 2618: 2613: 2609: 2605: 2601: 2597: 2593: 2586: 2583: 2578: 2572: 2568: 2564: 2557: 2554: 2549: 2547:9780781765619 2543: 2539: 2532: 2529: 2524: 2520: 2516: 2512: 2508: 2504: 2497: 2494: 2489: 2485: 2480: 2475: 2471: 2467: 2463: 2459: 2455: 2448: 2445: 2430: 2426: 2422: 2418: 2414: 2410: 2406: 2402: 2398: 2391: 2384: 2381: 2376: 2369: 2366: 2361: 2357: 2353: 2349: 2345: 2341: 2333: 2330: 2320: 2316: 2310: 2307: 2302: 2298: 2294: 2290: 2286: 2282: 2281:J. Chem. Educ 2275: 2272: 2268: 2265:From p. 205: 2255: 2251: 2247: 2243: 2239: 2238: 2233: 2226: 2223: 2218: 2214: 2209: 2204: 2200: 2196: 2192: 2188: 2184: 2177: 2174: 2162: 2158: 2154: 2150: 2147: 2143: 2139: 2135: 2131: 2128: 2122: 2119: 2114: 2110: 2106: 2102: 2098: 2094: 2090: 2086: 2079: 2076: 2071: 2065: 2061: 2054: 2051: 2046: 2040: 2036: 2029: 2026: 2021: 2015: 2011: 2004: 2001: 1996: 1990: 1986: 1979: 1976: 1971: 1965: 1961: 1957: 1951: 1948: 1935: 1931: 1927: 1921: 1918: 1906: 1902: 1898: 1892: 1889: 1884: 1880: 1876: 1872: 1865: 1862: 1857: 1851: 1847: 1843: 1839: 1836:. Cambridge: 1835: 1828: 1825: 1819: 1814: 1811: 1809: 1806: 1804: 1801: 1800: 1796: 1794: 1792: 1781: 1776: 1773: 1770: 1766: 1763: 1761: 1757: 1754: 1752: 1748: 1745: 1743:in position 1 1742: 1739: 1735: 1732: 1729: 1725: 1722: 1719: 1715: 1714:Benzimidazole 1712: 1711: 1707: 1705: 1691: 1687: 1683: 1679: 1678:ionic liquids 1675: 1671: 1667: 1663: 1659: 1650: 1643: 1641: 1638: 1636: 1627: 1625: 1623: 1619: 1616: 1612: 1608: 1605: 1599: 1591: 1586: 1585:agrichemicals 1582: 1578: 1574: 1572: 1568: 1564: 1560: 1556: 1548: 1546: 1544: 1543: 1538: 1534: 1533: 1528: 1524: 1519: 1517: 1513: 1509: 1505: 1500: 1498: 1494: 1490: 1486: 1482: 1479: 1471: 1469: 1467: 1463: 1459: 1458:pharmacophore 1455: 1451: 1447: 1442: 1440: 1436: 1432: 1428: 1424: 1420: 1416: 1415:antiprotozoal 1412: 1408: 1403: 1401: 1397: 1393: 1389: 1384: 1382: 1378: 1374: 1370: 1366: 1363: 1355: 1353: 1351: 1347: 1343: 1335: 1334: 1333: 1331: 1327: 1323: 1319: 1309: 1305: 1304: 1303: 1289: 1285: 1281: 1273: 1265: 1261: 1260: 1259: 1257: 1249: 1239: 1235: 1234: 1233: 1232: 1231: 1221: 1217: 1206: 1202: 1201: 1200: 1198: 1194: 1190: 1186: 1182: 1178: 1170: 1166: 1165: 1160: 1156: 1146: 1142: 1138: 1130: 1128: 1125: 1121: 1116: 1114: 1110: 1106: 1102: 1098: 1094: 1084: 1080: 1079: 1078: 1076: 1072: 1068: 1064: 1060: 1052: 1050: 1048: 1041: 1034: 1029: 1025: 1019: 1016:Imidazole is 1011: 1004: 1000: 999: 998: 996: 992: 988: 984: 981:of 3.67  980: 976: 972: 964: 962: 961:(1857–1935). 960: 955: 953: 949: 945: 940: 938: 934: 930: 926: 922: 918: 906: 901: 899: 895: 891: 887: 884: 880: 864: 860: 848: 841: 836: 819: 813: 809: 807: 804: 803: 777: 774: 770: 769: 755: 752: 748: 747: 744: 741: 738: 734: 733: 729: 724: 719: 715: 712: 708: 707: 703: 701: 696: 692: 687: 686: 682: 681: 676: 671: 668: 664: 661: 660:Dipole moment 657: 656: 652: 649: 645: 644: 641: 638: 635: 631: 630: 625: 621: 614: 611: 610: 606: 602: 596: 592: 589: 588: 584: 581: 577: 576: 572: 570: 569:Boiling point 567: 566: 562: 560: 559:Melting point 557: 556: 552: 550: 547: 546: 542: 539: 538: 534: 532: 529: 528: 512: 509: 505: 504: 499: 490: 486: 479: 468: 458: 454: 447: 439: 435: 434:DTXSID2029616 431: 430: 428: 418: 414: 413: 409: 407: 404: 403: 396: 392: 391: 389: 387: 384: 383: 376: 375: 373: 371: 368: 367: 360: 356: 355: 353: 347: 343: 342: 335: 331: 330: 328: 326: 323: 322: 318: 315: 311: 310: 303: 302: 300: 298: 293: 292: 288: 284: 281: 279: 277:ECHA InfoCard 274: 273: 266: 262: 261: 259: 257: 254: 253: 246: 242: 241: 239: 237: 234: 233: 226: 222: 221: 219: 217: 214: 213: 206: 202: 201: 199: 197: 194: 193: 189: 186: 182: 181: 174: 170: 169: 167: 163: 158: 157: 150: 146: 145: 143: 140: 136: 135: 130: 120: 114: 108: 104: 99: 95: 90: 80: 76: 71: 67: 66: 62: 52: 48: 43: 39: 38: 34: 19: 3550:tea tree oil 3535:lemon myrtle 3448:ethylparaben 3378:griseofulvin 3239:Benzylamines 3128:ravuconazole 3123:albaconazole 3115:voriconazole 3110:posaconazole 3100:itraconazole 3090:hexaconazole 3008:neticonazole 2998:luliconazole 2993:ketoconazole 2983:flutrimazole 2968:eberconazole 2958:clotrimazole 2943:butoconazole 2928: 2811: 2807: 2800: 2767: 2763: 2757: 2745:. Retrieved 2731: 2719:. Retrieved 2705: 2678: 2672: 2629: 2595: 2591: 2585: 2566: 2556: 2537: 2531: 2509:(1): 79–86. 2506: 2503:J. Neurosurg 2502: 2496: 2461: 2457: 2447: 2436:. Retrieved 2400: 2396: 2383: 2374: 2368: 2343: 2339: 2338:chlorides". 2332: 2309: 2287:(11): 1658. 2284: 2280: 2274: 2266: 2258:. Retrieved 2241: 2235: 2225: 2190: 2186: 2176: 2160: 2156: 2141: 2137: 2121: 2088: 2084: 2078: 2059: 2053: 2034: 2028: 2009: 2003: 1984: 1978: 1959: 1950: 1938:. Retrieved 1929: 1920: 1909:. Retrieved 1901:molekula.com 1900: 1891: 1874: 1871:J. Org. Chem 1870: 1864: 1833: 1827: 1785: 1730:is saturated 1690:imidazolates 1655: 1639: 1631: 1601: 1563:clotrimazole 1555:enilconazole 1552: 1540: 1530: 1520: 1512:voriconazole 1508:itraconazole 1501: 1497:clotrimazole 1489:ketoconazole 1475: 1454:inflammation 1446:clotrimazole 1443: 1441:activities. 1423:theophylline 1404: 1385: 1359: 1339: 1315: 1302:= hydrogen. 1277: 1253: 1215: 1213: 1174: 1134: 1120:Debus method 1117: 1101:benzaldehyde 1090: 1074: 1067:formaldehyde 1056: 1039: 1032: 1023: 1015: 968: 956: 941: 902: 861:(ImH) is an 858: 857: 742: 699: 689:Main hazards 678: 594: 370:RTECS number 132:Identifiers 122:Other names 112: 3590:from market 3569:pentamidine 3530:lemon grass 3488:taurolidine 3458:polynoxylin 3359:flucytosine 3303:caspofungin 3227:terbinafine 3213:Allylamines 3075:fluconazole 3067:terconazole 3062:fluconazole 3033:tioconazole 3028:sulconazole 3018:oxiconazole 3013:omoconazole 2988:isoconazole 2963:croconazole 2921:inhibitors) 2919:demethylase 2876:Antifungals 2417:10261/87090 1940:17 February 1926:"Imidazole" 1897:"Imidazole" 1813:Imidazoline 1728:double bond 1670:protonation 1504:fluconazole 1155:= hydrogen. 1053:Preparation 1012:Amphoterism 991:π-electrons 954:in nature. 952:heterocycle 933:antibiotics 886:heterocycle 806:Flash point 737:Signal word 683:(OHS/OSH): 540:Appearance 501:Properties 283:100.005.473 205:CHEBI:16069 124:1,3-Diazole 3627:Imidazoles 3621:Categories 3559:atovaquone 3540:orange oil 3503:tolnaftate 3498:tolciclate 3483:sulbentine 3453:haloprogin 3433:ciclopirox 3398:tavaborole 3390:inhibitors 3376:Systemic: 3357:Systemic: 3318:rezafungin 3313:micafungin 3308:cilofungin 3292:Systemic: 3286:inhibitors 3269:amorolfine 3248:butenafine 3205:inhibitors 3189:Systemic: 3166:ergosterol 3073:Systemic: 3003:miconazole 2953:climbazole 2938:bifonazole 2929:Imidazoles 2905:inhibitors 2902:Ergosterol 2438:2018-07-24 2260:2016-10-01 1911:2018-10-19 1820:References 1604:His-tagged 1581:Prochloraz 1571:bifonazole 1567:prochloraz 1559:climbazole 1535:, as does 1493:miconazole 1481:infections 1411:antifungal 1407:fungicides 1402:reaction. 1381:hemoglobin 1369:side-chain 1362:amino acid 1280:photolysis 1143:or α-amino 1018:amphoteric 971:tautomeric 944:pyrimidine 931:series of 711:Pictograms 693:Corrosive 640:Monoclinic 627:Structure 531:Molar mass 395:7GBN705NH1 236:ChemSpider 160:3D model ( 139:CAS Number 115:-Imidazole 31:Imidazole 3632:Alkaloids 3600:Phase III 3588:Withdrawn 3545:patchouli 3493:ticlatone 3396:Topical: 3267:Topical: 3246:Topical: 3222:naftifine 3220:Topical: 3193:, hamycin 3181:natamycin 3174:Topical: 3147:abafungin 3145:Topical: 3138:Thiazoles 3121:Unknown: 3055:Topical: 3048:Triazoles 2973:econazole 2936:Topical: 2828:0022-3263 2784:0731-7085 2612:135799368 1775:Triazoles 1396:urticaria 1392:histamine 1365:histidine 1318:formamide 1220:formamide 1093:microwave 995:resonance 937:midazolam 921:histamine 917:histidine 905:alkaloids 896:atoms in 859:Imidazole 799:P308+P313 791:P301+P310 702:labelling 406:UN number 377:NI3325000 304:206-019-2 296:EC Number 225:ChEMBL540 3443:dimazole 3186:nystatin 3168:binding) 2894:membrane 2836:22409592 2741:Archived 2715:Archived 2697:11865673 2523:16121977 2429:Archived 2425:18477512 2254:Archived 2149:Archived 2130:Archived 2113:12416667 2105:17191854 1934:Archived 1905:Archived 1797:See also 1769:nitrogen 1765:Pyrazole 1756:Thiazole 1738:nitrogen 1674:nitrogen 1662:chloride 1607:proteins 1435:leukemia 1400:allergic 1373:proteins 1350:aldimine 1326:platinum 1193:platinum 1185:aldehyde 1141:aldehyde 1047:pyridine 987:aromatic 975:nitrogen 894:nitrogen 883:aromatic 879:alkaline 673:Hazards 585:633 g/L 256:DrugBank 149:288-32-4 3564:dapsone 3176:hamycin 2792:8851751 2488:7518297 2479:1910171 2348:Bibcode 2289:Bibcode 2217:3522351 2195:Bibcode 1747:Oxazole 1734:Pyrrole 1718:benzene 1666:nitrate 1527:keratin 1377:enzymes 1348:and an 1330:alumina 1197:alumina 1181:alcohol 1137:imidate 1113:lophine 1105:ammonia 1091:In one 1071:ammonia 1063:glyoxal 890:diazole 840:what is 838: ( 622:206 nm 591:Acidity 549:Density 525: 346:PubChem 265:DB03366 190:103853 3583:WHO-EM 3411:Others 3261:Others 2913:Azoles 2834:  2826:  2790:  2782:  2747:13 May 2721:13 May 2695:  2685:  2646:  2610:  2573:  2544:  2521:  2486:  2476:  2423:  2325:  2317:, 2215:  2111:  2103:  2066:  2041:  2016:  1991:  1966:  1852:  1782:Safety 1760:sulfur 1751:oxygen 1658:cation 1615:nickel 1569:, and 1510:, and 1495:, and 1478:fungal 1417:, and 1346:TosMIC 1177:alkane 1145:acetal 1097:benzil 1069:, and 948:purine 927:, the 835:verify 832:  743:Danger 613:UV-vis 492:c1cnc1 485:SMILES 334:C01589 216:ChEMBL 101:Names 2892:Wall/ 2608:S2CID 2432:(PDF) 2393:(PDF) 2213:S2CID 2109:S2CID 1771:atoms 1686:anion 1187:, or 765:H360D 665:3.61 453:InChI 410:3263 319:1417 196:ChEBI 162:JSmol 2882:and 2832:PMID 2824:ISSN 2788:PMID 2780:ISSN 2749:2021 2723:2021 2693:OCLC 2683:ISBN 2664:link 2644:ISBN 2571:ISBN 2542:ISBN 2519:PMID 2484:PMID 2421:PMID 2101:PMID 2064:ISBN 2039:ISBN 2014:ISBN 1989:ISBN 1964:ISBN 1942:2024 1850:ISBN 1741:atom 1720:ring 1618:ions 1464:and 1409:and 1375:and 1340:The 1115:"). 1103:and 787:P280 783:P270 779:P263 761:H314 757:H302 386:UNII 325:KEGG 3555:PCP 2884:J02 2880:D01 2816:doi 2772:doi 2636:doi 2600:doi 2511:doi 2507:103 2474:PMC 2466:doi 2462:111 2413:hdl 2405:doi 2356:doi 2297:doi 2246:doi 2242:107 2203:doi 2161:249 2093:doi 1879:doi 1842:doi 1704:). 1664:or 1609:in 1439:DNA 1390:to 1328:on 1298:= R 1294:= R 1282:of 1226:= R 1195:on 1151:= R 1107:in 700:GHS 617:max 607:) 422:EPA 359:795 349:CID 245:773 3623:: 3596:: 3557:: 2830:. 2822:. 2812:77 2810:. 2786:. 2778:. 2768:14 2766:. 2739:. 2713:. 2691:. 2660:}} 2656:{{ 2642:. 2620:^ 2606:. 2596:84 2594:. 2517:. 2505:. 2482:. 2472:. 2460:. 2456:. 2427:. 2419:. 2411:. 2401:16 2395:. 2354:. 2344:42 2342:. 2295:. 2285:83 2283:. 2252:. 2240:. 2211:. 2201:. 2191:36 2189:. 2185:. 2159:, 2142:20 2140:, 2107:. 2099:. 2087:. 1932:. 1928:. 1899:. 1875:26 1873:. 1848:. 1790:50 1788:LD 1637:. 1573:. 1565:, 1561:, 1557:, 1545:. 1506:, 1499:. 1491:, 1462:Ca 1413:, 1383:. 1320:, 1183:, 1099:, 1065:, 1043:BH 939:. 900:. 797:, 793:, 789:, 785:, 781:, 763:, 759:, 704:: 619:) 615:(λ 600:) 593:(p 3347:/ 3320:) 3296:( 3164:( 2915:( 2886:) 2878:( 2868:e 2861:t 2854:v 2838:. 2818:: 2794:. 2774:: 2751:. 2725:. 2699:. 2666:) 2652:. 2638:: 2614:. 2602:: 2579:. 2550:. 2525:. 2513:: 2490:. 2468:: 2441:. 2415:: 2407:: 2362:. 2358:: 2350:: 2303:. 2299:: 2291:: 2263:. 2248:: 2219:. 2205:: 2197:: 2169:3 2167:H 2165:3 2115:. 2095:: 2089:1 2072:. 2047:. 2022:. 1997:. 1972:. 1944:. 1914:. 1885:. 1881:: 1858:. 1844:: 1702:2 1700:N 1698:3 1696:H 1694:3 1587:. 1466:K 1300:3 1296:2 1292:1 1228:2 1224:1 1216:N 1153:2 1149:1 1075:C 1040:K 1036:a 1033:K 1031:p 1027:a 1024:K 1022:p 983:D 913:2 911:N 909:3 875:4 873:H 871:2 869:N 867:3 830:Y 667:D 598:a 595:K 523:2 521:N 519:4 517:H 515:3 513:C 424:) 420:( 164:) 113:H 111:1 20:)

Index

Imidazole ring
Full structural formula
Skeletal formula with numbers
Ball-and-stick model
Space-filling model

Preferred IUPAC name
CAS Number
288-32-4
JSmol
Interactive image
Beilstein Reference
ChEBI
CHEBI:16069
ChEMBL
ChEMBL540
ChemSpider
773
DrugBank
DB03366
ECHA InfoCard
100.005.473
Edit this at Wikidata
EC Number
Gmelin Reference
KEGG
C01589
PubChem
795
RTECS number

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