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Chlorophacinone

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808:, and facial and cervical swelling. Post-mortem examination in two of the affected lambs have revealed that all organs had a pale appearance, notably the liver, and that the lungs were heavier than usual and were slightly brownish. In four beavers exposed to 2.13 ± 0.4 mg/kg chlorophacinone, bleeding from the mouth, gasping for breath and convulsions were observed, and the beavers died within 15 days after exposure. Studies in rats have indicated that male rats experience more profound effects than female rats. Birds are not as sensitive to chlorophacinone as mammals, but they may still experience sublethal effects from it, such as external bleeding, internal hematoma and increased blood coagulation time. General toxic symptoms include dyspnea, lethargy, hemorrhage from the nose and urethral bleeding. 919:. The anticoagulant concentration is diluted ten-fold in secondary exposure, and even more when the predator also eats non-poisoned prey. Small, granivorous animals that share burrows with the target animal are mainly at risk to be exposed. In a study summarized by USEPA (2004), chlorophacinone baits were used to control California ground squirrels in rangelands, and nontarget deer mice and San Joaquin pocket mice were found dead with at least 86% of the mortalities likely due to bait exposure. The risk of chlorophacinone exposure to birds is minimal, and the aquatic and terrestrial plant exposure is considered negligible. 234: 139: 915:, chlorophacinone bait is distributed into burrow openings or on the ground just outside burrows. Although each placement is covered with grass or shingle to avoid exposing nontarget organisms and chlorophacinone is not likely to drain into soil, nontarget organisms could still be exposed to chlorophacinone by eating the bait. Predators could also eat animals poisoned with chlorophacinone, which is classified as secondary exposure, although multiple poisoned animals must be consumed to receive a 561: 760:. Hepatic metabolism is generally biphasic with a rapid initial phase and more prolonged terminal phase. However metabolite excretion pathways of chlorophacinone still remain poorly described. The major route of elimination of chlorophacinone is through the feces (~95%) however with minor excretion (<1%) through urine and respiration. 26% of chlorophacinone is excreted within eight hours post-exposure via the bile. 24: 642: 424:
developed during the 1940s to 1960s to control rodents in terrestrial environments. Its use began being replaced during the 1970s, along with the use of other rodenticides of its group, by the more potent second-generation anticoagulant rodenticides, when several studies provided information which depicted a developed resistance of rodents to
361: 428:(another first-generation anticoagulant rodenticide) in northern Europe and the United States along with a discovered cross-resistance to all first-generation anticoagulant rodenticides. This was found to be caused by a single, dominant and autosomal gene which raised the rodent's dietary requirement for 768:
Chlorophacinone is used as an anticoagulant rodenticide to control rodent populations in terrestrial environments. It has been proven to be very effective in efficacy studies in rats, mice and beavers. Out of the four toxicants strychnine, zinc phosphide, chlorophacinone and diphacinone, the efficacy
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in the liver. After 1–4 days of repeated exposure a steady-state phase is reached. The time it takes to reach a steady-state phase suggest rapid elimination of chlorophacinone from the body. Anticoagulants are rapidly and principally absorbed in the intestine. The rodenticide was found to metabolized
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Belonging to the group of first-generation anticoagulant rodenticides, chlorophacinone has similar symptoms on animals as the other chemicals in its category. Specifically, after being ingested several times by the target animal (most often a rodent), it interferes with the clotting of the blood and
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The French company Liphatech (formerly known as Lipha), which had previous experience with creating anticoagulants for the treatment of heart patients, created chlorophacinone in 1961 and branded it “Rozol”. Chlorophacinone belongs to the first-generation anticoagulant rodenticide group, first being
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The SENSOR-pesticide database documented 12 human exposure cases involving chlorophacinone between 1998 and 2011. One was a moderate severity case, which involved an insulation worker being exposed to chlorophacinone dust by touching and/or inhaling it. The worker experienced shakiness, fever, and
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Chlorophacinone is classified as a highly toxic substance when administered orally, dermally, or through inhalation in mammals, falling under Toxicity Category I. It is not a dermal or eye irritant, or a dermal sensitizer (Toxicity Category IV). Accidental exposure incidents involving lambs have
735:. When orally ingested absorption of chlorophacinone peaks between 4 and 6 hours after initial ingesting. The compound has a half-life of approximately 10 hours. Highest concentrations of chlorophacinone are found in the liver and kidneys. Repeated oral dosing in rats suggests 432:(the vitamin whose production anticoagulants primarily inhibited) to twenty times the normal amount. Even though its use has diminished, chlorophacinone can still be bought for rodenticide use, for situations in which conventional bait for rodenticidal purposes cannot be used. 570:
Chlorophacinone can be synthesized through different mechanisms. A more recently studied mechanism will be discussed below (figure 1). In this synthesizes chlorophacinone is synthesized with less production of side products compared to the classic mechanisms.
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of chlorophacinone has been proven to be the highest in controlling mountain beaver populations. Chronic ingestion of smaller doses over time proves to be more toxic than acute ingestion of the same dose, a common trait among anticoagulant rodenticides.
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of the vitamin K(1)-2,3 epoxide reductase (VKOR) enzyme which is responsible for the synthesis of vitamin K and therefore the clotting factors II, VII, IX and X, factors critical to blood clotting, lack of which eventually causes mass
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vomiting, as well as respiratory, neurological, gastrointestinal, renal and cardiovascular symptoms. Another case involved a homeowner who experienced shortness of breath and coughing after accidentally inhaling chlorophacinone. No
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in the tissue will diminish, this in turn will decrease the carboxylation activity of Îł-glutamyl carboxylase. Resulting in under-carboxylation of clotting factors, meaning they are no longer capable of binding to the
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Chlorophacinone is a first-generation anticoagulant rodenticide. The compound is an indandione derivate. It acts as a vitamin K antagonist and exerts its anticoagulatory effect by interfering with the
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constant of 5.12 x 10 atm-m3/mol suggests a low potential to volatilize from water or soil into the atmosphere. It is dissolves relatively good in organic solvents like
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cofactor is created within the vitamin K redox cycle. Chlorophacinone interferes with the vitamin K redox cycle by inhibiting vitamin K epoxide reductase (VKOR), an
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inside the animal. Although internal bleeding is the usual cause of death in this category of rodenticides, chlorophacinone has also been shown to cause additional
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are attached to the other side, one contains a chloride. Chlorophacinone contains one optically active carbon and therefore it occurs as two
702:(ER). The enzyme plays a vital role within this cycle. The catalytic activity of VKOR is required for the reduction of KO to vitamin K to KH 415:(42 U.S.C. 11002) and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities. 1512: 1383:"Developing a management strategy to reduce roof rat, Rattus rattus, impacts on open-cup nesting songbirds in California riparian forests" 2002: 1997: 248: 565:
Figure 1: the synthesis of Chlorophacinone. a) SnCl4, 70°C, 8 h, 85% ; b) 25°C, 12 h, quant, ; c) AlCl3, 25°C, 12h, 60%
403:. The mechanism of action results in internal bleeding due to non-functional clotting factors. It was used as a toxin to control 1280: 656: 1765: 752:
step. Hydroxylation occurs on the phenyl and indandionyl rings, these metabolites can then further undergo conjugation with
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by the enzyme Îł-glutamyl carboxylase (GGCX). The Îł-carboxyglutamate residues promote the binding of clotting factors to
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InChI=1S/C23H15ClO3/c24-16-12-10-15(11-13-16)19(14-6-2-1-3-7-14)23(27)20-21(25)17-8-4-5-9-18(17)22(20)26/h1-13,19-20H
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InChI=1/C23H15ClO3/c24-16-12-10-15(11-13-16)19(14-6-2-1-3-7-14)23(27)20-21(25)17-8-4-5-9-18(17)22(20)26/h1-13,19-20H
1584: 1138: 1474:"Assessing the efficacy of registered underground baiting products for mountain beaver (Aplodontia rufa) control" 778:
leads to internal bleeding, eventually causing death within 5 to 7 days. This effect is due to the rodenticide's
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synthesis of vitamin K-dependent clotting factors. Synthesis of clotting factor II, VII, IX and X involves the
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or neurologic symptoms in laboratory rats, often leading to their death before significant bleeding occurs.
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assessments have been conducted on chlorophacinone since chronic exposure is not likely to occur.
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Lemay A, McCaskill M, Warren J, Hall, T.C, Paz L, Deliberto S, Ruell E, Wimberly (March 2023).
1831: 1555: 1547: 1449: 1441: 1394: 1363: 1355: 1300: 1296: 1256: 1246: 1175: 1070: 749: 596: 1527: 706:. The inhibition of VKOR by chlorophacinone prevents the recycling of vitamin K from KO to KH 1879: 1826: 1539: 1493: 1433: 1292: 1238: 1165: 589: 441: 306: 581:
as starting product as it is a cheap and commercially available. Mandelic acid reacts with
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with the following systematic name: (2-indan-1,3-dione. The structure consists of an
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is converted to vitamin K 2,3 epoxide (KO) during the carboxylation reaction. The KH
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Figure 2: The vitamin K redox cycle and the inhibition of chlorophacinone of VKOR.
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Whisson, Desley A.; Quinn, Jessica H.; Collins, Kellie; Engilis, Andrew (2004).
916: 900: 716: 675: 610:. No purification is needed to start the last step of the synthesis, which is a 400: 1543: 1094: 1951: 1887: 1864: 1760: 1742: 1686: 1437: 784: 457: 337: 107: 23: 1569: 1551: 1445: 1398: 1359: 1179: 1956: 1897: 1785: 1750: 1413: 1382: 801: 641: 429: 1559: 1453: 1304: 1260: 1367: 1170: 1905: 1646: 1626: 471: 425: 1412:
Pitt, William C.; Driscoll, Laura C.; Sugihara, Robert T. (April 2011).
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Except where otherwise noted, data are given for materials in their
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at room temperature to obtain 6-chloro-2,2-diphenylacetyl chloride
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surface of blood vessels, and thus are biologically inactive.
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Csuk, René; Barthel, Alexander; Ströhl, Dieter (2011-01-01).
1344:"Metabolism and disposition of diphacinone in rats and mice" 1281:"Vitamin K-Dependent Biosynthesis of Îł-Carboxyglutamic Acid" 1196:
Van den Brink NW, Elliott JE, Shore RF, Rattner BA. (2017).
625:. This reaction provided the final product, chlorophacinone 217: 1279:
Furie, Bruce; Bouchard, Beth A.; Furie, Barbara C. (1999).
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prior to entering the systemic circulation, with potential
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H410: Very toxic to aquatic life with long lasting effects
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in the United States as defined in Section 302 of the U.S.
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Yu, C. C.; Atallah, Y. H.; Whitacre, D. M. (1982-11-01).
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is needed for the carboxylation reaction to occur. The KH
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Piero, Fabio Del; Poppenga, Robert H. (September 2006).
1227:"Structure and Function of Vitamin K Epoxide Reductase" 1154:"An Alternative and Efficient Route to Chlorophacinone" 369: 1513:"Chlorophacinone - an overview | ScienceDirect Topics" 1418:
Archives of Environmental Contamination and Toxicology
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In order to control the population of animals such as
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H372: Causes damage to the blood through prolonged or
602:. Thereafter, the phenylacetic acid is treated with 1919: 1896: 1878: 1855: 1807: 1784: 1741: 1709: 1665: 1639: 1625: 1611: 413:Emergency Planning and Community Right-to-Know Act 179: 291:Clc1ccc(cc1)C(c2ccccc2)C(=O)C4C(=O)c3ccccc3C4=O 71: 1532:Journal of Veterinary Diagnostic Investigation 731:and may also be absorbed through the skin and 1585: 1387:Proceedings of the Vertebrate Pest Conference 8: 1210:: CS1 maint: multiple names: authors list ( 1075:: CS1 maint: multiple names: authors list ( 727:The chlorophacinone is absorbed through the 674:of the blood vessels, thereby accelerating 1636: 1622: 1592: 1578: 1570: 1478:USDA Wildlife Services: Staff Publications 1225:Tie, Jian-Ke; Stafford, Darrel W. (2008), 232: 137: 115: 15: 1297:10.1182/blood.v93.6.1798.406k22_1798_1808 1169: 199: 817: 740:in the liver. Metabolism is mediated by 640: 559: 476: 1472:Arjo, Wendy; Nolte, Dale (2004-05-09). 1198:Anticoagulant Rodenticides and Wildlife 940: 710:(figure 2). Therefore, the supply of KH 678:. However, a vitamin K hydroquinone (KH 288: 253: 228: 1203: 1068: 979: 968: 128: 1467: 1465: 1463: 260:Key: UDHXJZHVNHGCEC-UHFFFAOYSA-N 7: 1191: 1189: 1133: 1131: 1088: 1086: 1053: 1051: 1049: 1047: 1045: 1043: 1041: 1039: 1037: 614:of the previously obtained compound 407:populations. It is classified as an 499:H360D: May damage the unborn child 270:Key: UDHXJZHVNHGCEC-UHFFFAOYAM 170: 154: 470:(854 mg/L at 25 Â°C) and 14: 1947:1,3-Difluoro-2-propanol (Gliftor) 504:H310: Fatal in contact with skin 436:Structure and physical properties 1158:Zeitschrift fĂŒr Naturforschung B 748:also appears to be an important 629:, with no significant amount of 359: 324: 318: 22: 1348:Drug Metabolism and Disposition 355:(at 25 Â°C , 100 kPa). 1766:Tetramethylenedisulfotetramine 815:values for different species: 327: 312: 1: 1243:10.1016/s0083-6729(07)00006-4 549:~260 nm and 315 nm 409:extremely hazardous substance 1498:10.1016/j.cropro.2003.09.011 1331:. World Health organization. 1200:. Springer. pp. 87–108. 1093:Hadler M, Buckle A (1992). 758:enterohepatic recirculation 533:4.76 x 10 Pa at 23 Â°C 448:, connected on one side to 2019: 2003:Anticoagulant rodenticides 1544:10.1177/104063870601800512 956:Government Printing Office 1438:10.1007/s00244-010-9554-x 954:(July 1, 2008 ed.). 861:Black-tailed prairie dog 800:shown symptoms including 696:integral membrane protein 501:H300: Fatal if swallowed 349: 299: 279: 244: 55: 35: 30: 21: 1998:4-Chlorophenyl compounds 633:or other side products. 1231:Vitamins & Hormones 1112:"Rozol Tracking Powder" 612:Friedel-Crafts reaction 507:H330: Fatal if inhaled 978:Cite journal requires 729:gastrointestinal tract 648: 567: 440:Chlorophacinone is an 396:is a first-generation 1771:Chlorophenylsilatrane 1618:Vitamin K antagonists 1237:, Elsevier: 103–130, 1171:10.1515/znb-2011-0116 700:endoplasmic reticulum 644: 595:to afford 85% of the 563: 541:5.12 x 10 atm-m3/mol 538:Henry's law constant 1967:Sodium fluoroacetate 1511:Pelfrene AF (2001). 806:respiratory distress 37:Preferred IUPAC name 1817:Aluminium phosphide 1809:Inorganic compounds 1490:2004CrPro..23..425A 1430:2011ArECT..60..533P 1324:Tasheva M. (1995). 637:Mechanism of action 574:The synthesis uses 483:Pale-yellow powder 345: g·mol 18: 1927:α-Naphthylthiourea 1632:4-Hydroxycoumarins 895:Environmental risk 869:Northern bobwhite 773:Effects on animals 744:isozymes and ring 733:respiratory system 668:Îł-carboxyglutamate 649: 568: 546:UV/Vis absorption 513:repeated exposure 496:Hazard statements 382:Infobox references 16: 1975: 1974: 1832:Calcium phosphide 1737: 1736: 1705: 1704: 1252:978-0-12-374113-4 884: 883: 750:biotransformation 657:posttranslational 597:phenylacetic acid 553: 552: 522:Relative density 390:Chemical compound 388: 387: 213:CompTox Dashboard 97:Interactive image 2010: 1880:Organophosphorus 1842:Thallium sulfate 1827:Barium carbonate 1666:2nd generation ( 1637: 1623: 1594: 1587: 1580: 1571: 1564: 1563: 1523: 1517: 1516: 1508: 1502: 1501: 1469: 1458: 1457: 1409: 1403: 1402: 1378: 1372: 1371: 1339: 1333: 1332: 1330: 1321: 1315: 1314: 1312: 1311: 1291:(6): 1798–1808. 1276: 1270: 1269: 1268: 1267: 1222: 1216: 1215: 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acid 572: 566: 562: 555: 548: 545: 544: 540: 537: 536: 532: 529: 528: 524: 521: 520: 517: 514: 511: 508: 505: 502: 498: 495: 494: 490: 487: 486: 482: 479: 478: 475: 473: 469: 465: 461: 459: 455: 454:phenyl groups 451: 447: 443: 435: 433: 431: 427: 418: 416: 414: 410: 406: 402: 399: 398:anticoagulant 395: 383: 376: 371: 354: 348: 341: 339: 336: 335: 311: 308: 304: 303: 298: 289: 285: 278: 264: 254: 250: 243: 235: 231: 230:DTXSID2032348 227: 226: 224: 214: 210: 209: 202: 198: 197: 195: 193: 190: 189: 182: 178: 177: 175: 169: 165: 164: 157: 153: 152: 150: 148: 145: 144: 140: 136: 133: 131: 129:ECHA InfoCard 126: 125: 118: 114: 113: 111: 109: 106: 105: 98: 94: 93: 91: 87: 82: 81: 74: 70: 69: 67: 64: 60: 59: 54: 48: 45:-indene-1,3(2 44: 38: 34: 29: 25: 20: 1962:Scilliroside 1942:Flupropadine 1718: 1692:Difethialone 1682:Bromadiolone 1605:Rodenticides 1601:Pest control 1535: 1531: 1521: 1506: 1481: 1477: 1421: 1417: 1407: 1390: 1386: 1376: 1351: 1347: 1337: 1319: 1308:. Retrieved 1288: 1284: 1274: 1264:, retrieved 1234: 1230: 1220: 1197: 1164:(1): 95–97. 1161: 1157: 1147: 1141:. July 2016. 1119:. Retrieved 1115: 1106: 1025:. Retrieved 1021: 1012: 1001:. Retrieved 992: 971:cite journal 959:. Retrieved 943: 901:prairie dogs 898: 885: 826: 821: 810: 798: 776: 767: 726: 650: 645: 626: 622: 615: 607: 599: 585: 578: 573: 569: 564: 525:1.4301 g/mL 515: 512: 509: 506: 503: 500: 462: 446:acetyl group 439: 422: 393: 392: 56:Identifiers 46: 42: 1932:Bromethalin 1786:Calciferols 1743:Convulsants 1729:Diphacinone 1697:Flocoumafen 1677:Brodifacoum 961:October 29, 917:lethal dose 845:Female rat 717:endothelial 676:coagulation 631:diphacinone 480:Appearance 464:Henry's law 458:enantiomers 450:indanedione 401:rodenticide 300:Properties 135:100.020.912 1988:Pesticides 1982:Categories 1952:Norbormide 1898:Carbamates 1888:Phosacetim 1865:Chloralose 1761:Strychnine 1687:Difenacoum 1484:(5): 425. 1310:2024-03-14 1266:2024-03-14 1121:2024-03-14 1027:2024-03-14 1003:2024-03-14 935:References 785:hemorrhage 780:inhibition 723:Metabolism 452:ring. Two 338:Molar mass 201:34Y6E0063Y 108:ChemSpider 84:3D model ( 63:CAS Number 1957:Pyrinuron 1751:Crimidine 1627:Coumarins 1552:1040-6387 1446:1432-0703 1399:0507-6773 1360:0090-9556 1206:cite book 1180:1865-7117 1018:"History" 837:Male rat 802:epistaxis 664:glutamate 556:Synthesis 430:vitamin K 73:3691-35-8 1906:Aldicarb 1647:Warfarin 1560:17037620 1454:20552335 1305:10068650 1261:18374192 1071:cite web 923:See also 880:>300 877:Redworm 795:Toxicity 764:Efficacy 684:cofactor 472:methanol 426:Warfarin 1837:Cyanide 1822:Arsenic 1724:Pindone 1657:Fumarin 1486:Bibcode 1426:Bibcode 1368:6130915 853:Rabbit 822:Species 653:hepatic 419:History 375:what is 373: ( 168:PubChem 49:)-dione 1920:Others 1911:T-1152 1870:Endrin 1558:  1550:  1452:  1444:  1397:  1393:(21). 1366:  1358:  1303:  1259:  1249:  1178:  856:0.329 848:10.95 811:The LD 468:hexane 405:rodent 370:verify 367:  343:374.82 284:SMILES 156:C18514 31:Names 1329:(PDF) 1285:Blood 1098:(PDF) 1063:(PDF) 952:(PDF) 864:1.94 840:3.15 618:with 249:InChI 181:19402 117:18286 86:JSmol 1556:PMID 1548:ISSN 1450:PMID 1442:ISSN 1395:ISSN 1364:PMID 1356:ISSN 1301:PMID 1257:PMID 1247:ISBN 1212:link 1176:ISSN 1077:link 984:help 963:2011 911:and 872:258 590:SnCl 192:UNII 147:KEGG 41:2--1 1776:RDX 1540:doi 1494:doi 1434:doi 1293:doi 1239:doi 1166:doi 666:to 662:of 218:EPA 171:CID 1984:: 1603:: 1554:. 1546:. 1536:18 1534:. 1530:. 1492:. 1482:23 1480:. 1476:. 1462:^ 1448:. 1440:. 1432:. 1422:60 1420:. 1416:. 1391:21 1389:. 1385:. 1362:. 1352:10 1350:. 1346:. 1299:. 1289:93 1287:. 1283:. 1255:, 1245:, 1235:78 1233:, 1229:, 1208:}} 1204:{{ 1188:^ 1174:. 1162:66 1160:. 1156:. 1130:^ 1114:. 1085:^ 1073:}} 1069:{{ 1036:^ 1020:. 975:: 973:}} 969:{{ 907:, 903:, 829:50 827:LD 813:50 804:, 682:) 460:. 325:Cl 322:15 316:23 1670:) 1629:/ 1615:/ 1593:e 1586:t 1579:v 1562:. 1542:: 1515:. 1500:. 1496:: 1488:: 1456:. 1436:: 1428:: 1401:. 1370:. 1313:. 1295:: 1241:: 1214:) 1182:. 1168:: 1124:. 1079:) 1065:. 1030:. 1006:. 986:) 982:( 965:. 712:2 708:2 704:2 692:2 688:2 680:2 627:6 623:5 616:4 608:4 600:3 592:4 586:2 579:1 365:N 331:3 328:O 319:H 313:C 220:) 216:( 88:) 47:H 43:H

Index


Preferred IUPAC name
CAS Number
3691-35-8
JSmol
Interactive image
ChemSpider
18286
ECHA InfoCard
100.020.912
Edit this at Wikidata
KEGG
C18514
PubChem
19402
UNII
34Y6E0063Y
CompTox Dashboard
DTXSID2032348
Edit this at Wikidata
InChI
SMILES
Chemical formula
Molar mass
standard state
verify
what is
Infobox references
anticoagulant
rodenticide

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