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Bufagin

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Two structurally similar bufagins can be utilized to develop a synthetic method, which is the transformation of bufotalin to cinobufagin. Cinobufagin is known for its potential as the precursor of many anti-tumor drugs and bufotalin is an important venom found within the cane toad. This synthesis
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and a newly discovered substance exist within the secretion, which they originally gave the name of “bufagin” to this digitalis-like substance. They also quantitatively analyzed the amounts of epinephrin and bufagin in the venom, which showed that 0.734 gram of bufagin with respect to 0.1 gram of
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Bick, RJ; Poindexter, BJ; Sweney, RR; Dasgupta, A (2002). "Effects of Chan Su, a traditional Chinese medicine, on the calcium transients of isolated cardiomyocytes: Cardiotoxicity due to more than Na, K-ATPase blocking".
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Jiun-Yih Yeh; William J. Huang; Shu-Fen Kan; Paulus S. Wang (2002). "Effects of bufalin and cinobufagin on the proliferation of androgen dependent and independent prostate cancer cells".
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while it was strongly irritated. They observed the semifluid substance is quickly dried in the air and formed a yellow and hard scales that shared a similar appearance with dried
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Pettit, George R.; Kamano, Yoshiaki (December 1972). "Steroids and related natural products. 78. Bufadienolides. 21. Synthesis of cinobufagin from bufotalin".
898: 371: 779:"Selective inhibitory effect of bufalin on growth of human tumor cells in vitro: association with the induction of apoptosis in leukemia HL-60 cells" 353: 335: 389: 301: 244:) ring attached to ring D (the five-membered one). The difference to digitalis compounds is that the latter have a fix-membered lactone (α- 491:
These bufagins, and especially cinobufagin, have given rise to a large number of derivatives evaluated as potential anti-tumor drugs.
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Wang, G.; G. Sun; et al. (1994). "The application of traditional Chinese medicine to the management of hepatic cancerous pain".
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Bufagin is the category name of a large bufadienolide family, there are at least 86 identified bufagins. Examples of bufagins are:
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Abel, John J.; Macht, David I. (27 May 1911). "THE POISONS OF THE TROPICAL TOAD, BUFO AGUA: A PRELIMINARY COMMUNICATION".
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Crowfoot, Dorothy (1935). "X-ray crystallography of the toad poisons bufagin and cinobufagin and of strophanthidin".
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Gao, Huimin; Popescu, Ruxandra; Kopp, Brigitte; Wang, Zhimin (2011). "Bufadienolides and their antitumor activity".
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These bufagins, and especially cinobufagin, have given rise to a large number of derivatives evaluated as potential
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obtained from toad's milk, the poisonous secretion of a skin gland on the back of the neck of a large toad (
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cells, have also been investigated in cellular models. Some of the bufagin toxins are used in low doses in
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S. Steyn, Pieter; R. van Heerden, Fanie (1998). "Bufadienolides of plant and animal origin".
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note: some toxins are produced by lower species and pass through intermediate species
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also refers to any of several similar substances found as components of the mixture
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Yin, P. H.; Liu, X; Qiu, Y. Y.; Cai, J. F.; Qin, J. M.; Zhu, H. R.; Li, Q (2012).
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is used for in Western medicine (i.e. treatment of heart conditions such as
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are investigating the property of unknown substances from a tropical toad,
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The discovery of bufagin has taken place in the fall of 1910, where
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Except where otherwise noted, data are given for materials in their
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in secretions of other toads, as well as plants and mushrooms.
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derivatives. This means they are steroids with a six-membered
224: 199:. They collected the "milky secretion" squirted out of toad’s 1890: 1806: 1801: 1671: 1592: 931: 245: 866: 2055: 1963: 248:) ring that has one carbon atom and one double bond less. 1900: 593: 433:Some bufagins have effects similar to poisoning by 776: 636: 169:in physiological activity and chemical structure. 509:Chemistry & Industry (London, United Kingdom) 2269: 37: 706: 445:. Some also have local anesthetic action. The 914: 997: 825: 671: 449:effects have also been proven, by acting as 569:Journal of the American Medical Association 521: 921: 907: 832:Asian Pacific Journal of Cancer Prevention 777:Jing, Y.; H. Ohizumi; et al. (1994). 420:Transformation of bufotalin to cinobufagin 1846:Androctonus australis hector insect toxin 843: 802: 566: 539: 522:Jensen, H.; Evans, E.A. (February 1934). 506: 415: 223: 2270: 428: 902: 13: 1200:Staphylococcal Enterotoxin B (SEB) 795:10.1111/j.1349-7006.1994.tb02408.x 524:"Chemical Studies on Toad Poisons" 14: 2299: 2252: 2251: 674:The Journal of Organic Chemistry 581:10.1001/jama.1911.02560210003002 460:. The anti-cancer properties in 67: 1284:Extracellular adenylate cyclase 860: 819: 770: 528:Journal of Biological Chemistry 121:(at 25 Â°C , 100 kPa). 727: 700: 665: 630: 587: 560: 548: 515: 500: 73: 61: 1: 1436:Fibronectin binding protein A 882:10.1016/s0024-3205(02)02302-0 845:10.7314/apjcp.2012.13.11.5339 541:10.1016/S0021-9258(18)75767-0 494: 480:for similar applications as 478:traditional Chinese medicine 456:on the binding sites of the 411: 219: 7: 1177:Staphylococcus aureus alpha 1155:Panton–Valentine leukocidin 10: 2304: 1195:Toxic shock syndrome toxin 280:(Rhinella marina, synonym 203:due to the control of the 182: 2247: 2234: 2172: 2092:(+)-Allopumiliotoxin 267A 2079: 2053: 2042: 1997: 1939: 1833: 1822: 1591: 1448: 1419: 1355: 1292: 1239: 1212: 1165: 1140: 1131: 1104: 1017: 1008: 988: 977: 425:method involves 6 steps. 232:Bufagin and bufagins are 115: 48: 21: 1485:beta-Nitropropionic acid 472:of the proliferation of 443:ventricular fibrillation 437:, having effects on the 1269:Heat-labile enterotoxin 1260:heat-stable enterotoxin 639:Natural Product Reports 596:Natural Product Reports 362:Amietophrynus regularis 1378:Bacillus thuringiensis 421: 229: 216:epinephrin presented. 205:central nervous system 2278:Antiarrhythmic agents 419: 227: 1279:Pseudomonas exotoxin 686:10.1021/jo00798a015 486:atrial fibrillation 429:Effects of bufagins 394:European green toad 91: g·mol 18: 2195:Alpha-Bungarotoxin 1365:Lipopolysaccharide 1323:Pore-forming toxin 748:10.1002/pros.10172 651:10.1039/C0NP00032A 422: 380:Incilius valliceps 358:square-marked toad 344:Anaxyrus quercicus 292:Chusan Island toad 230: 125:Infobox references 16: 2288:Vertebrate toxins 2265: 2264: 2230: 2229: 2200:Beta-Bungarotoxin 2144:Pumiliotoxin 251D 2038: 2037: 1444: 1443: 1431:Clumping factor A 1351: 1350: 1235: 1234: 1208: 1207: 1127: 1126: 709:J Tradit Chin Med 680:(25): 4040–4044. 133:Chemical compound 131: 130: 2295: 2255: 2254: 2183: 2139:Histrionicotoxin 2085: 2059: 2051: 2050: 2003: 1957:Alpha-latrotoxin 1945: 1839: 1831: 1830: 1563:Sterigmatocystin 1515:, Fumonisin B3, 1479:epsilon-amanitin 1398:B. thuringiensis 1227:Diphtheria toxin 1170: 1138: 1137: 1107: 1023: 1015: 1014: 1006: 1005: 995: 994: 986: 985: 923: 916: 909: 900: 899: 894: 893: 864: 858: 857: 847: 823: 817: 816: 806: 783:Jpn J Cancer Res 774: 768: 767: 731: 725: 724: 704: 698: 697: 669: 663: 662: 634: 628: 627: 608:10.1039/A815397Y 591: 585: 584: 564: 558: 552: 546: 545: 543: 519: 513: 512: 504: 372:Vallicepobufagin 296:Bufo gargarizans 264:Chaunus arenarum 90: 75: 69: 63: 56:Chemical formula 41: 19: 15: 2303: 2302: 2298: 2297: 2296: 2294: 2293: 2292: 2268: 2267: 2266: 2261: 2243: 2226: 2222:Cardiotoxin III 2178: 2173: 2168: 2080: 2075: 2054: 2046: 2034: 1998: 1993: 1940: 1935: 1834: 1826: 1818: 1722:Resiniferatoxin 1587: 1440: 1422: 1415: 1380:delta endotoxin 1347: 1288: 1274:Pertussis toxin 1242: 1231: 1204: 1166: 1161: 1123: 1119:Listeriolysin O 1105: 1100: 1018: 1000: 980: 973: 927: 897: 865: 861: 838:(11): 5339–43. 824: 820: 775: 771: 732: 728: 705: 701: 670: 666: 635: 631: 592: 588: 565: 561: 553: 549: 520: 516: 505: 501: 497: 474:prostate cancer 468:cells, and the 431: 414: 376:Gulf Coast toad 354:Regularobufagin 336:Quercicobufagin 222: 189:John Jacob Abel 185: 158:Rhinella marina 154: 150: 146: 134: 127: 122: 88: 78: 72: 66: 58: 44: 31: 12: 11: 5: 2301: 2291: 2290: 2285: 2280: 2263: 2262: 2260: 2259: 2248: 2245: 2244: 2242: 2241: 2235: 2232: 2231: 2228: 2227: 2225: 2224: 2219: 2214: 2209: 2204: 2203: 2202: 2197: 2186: 2184: 2170: 2169: 2167: 2166: 2164:Zetekitoxin AB 2161: 2156: 2151: 2146: 2141: 2136: 2131: 2130: 2129: 2124: 2119: 2114: 2109: 2099: 2094: 2088: 2086: 2077: 2076: 2074: 2073: 2068: 2062: 2060: 2048: 2040: 2039: 2036: 2035: 2033: 2032: 2027: 2022: 2017: 2012: 2006: 2004: 1995: 1994: 1992: 1991: 1986: 1981: 1976: 1971: 1966: 1961: 1960: 1959: 1948: 1946: 1937: 1936: 1934: 1933: 1928: 1923: 1918: 1913: 1908: 1903: 1898: 1893: 1888: 1883: 1878: 1873: 1868: 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1187: 1173: 1171: 1168:Staphylococcus 1163: 1162: 1160: 1159: 1158: 1157: 1147: 1141: 1135: 1129: 1128: 1125: 1124: 1122: 1121: 1116: 1110: 1108: 1102: 1101: 1099: 1098: 1097: 1096: 1084: 1083: 1082: 1077: 1065: 1064: 1063: 1058: 1046: 1045: 1044: 1039: 1026: 1024: 1012: 1003: 992: 983: 975: 974: 972: 971: 970: 969: 964: 959: 954: 949: 944: 939: 926: 925: 918: 911: 903: 896: 895: 876:(6): 699–709. 859: 818: 789:(6): 645–651. 769: 742:(2): 112–124. 726: 715:(2): 132–138. 699: 664: 645:(5): 953–969. 629: 602:(4): 397–413. 586: 559: 554:ChemicalBook: 547: 534:(2): 307–316. 514: 498: 496: 493: 439:cardiac muscle 430: 427: 413: 410: 402: 401: 387: 384:Bufo valliceps 369: 366:Bufo regularis 351: 348:Bufo quercicus 333: 321:Bufo rubescens 313: 310:Bufo japonicus 299: 285: 271: 260:Argentine toad 221: 218: 193:David I. Macht 184: 181: 152: 148: 144: 132: 129: 128: 123: 119:standard state 116: 113: 112: 109: 103: 102: 99: 93: 92: 86: 80: 79: 76: 70: 64: 59: 54: 51: 50: 46: 45: 43: 42: 34: 32: 27: 24: 23: 9: 6: 4: 3: 2: 2300: 2289: 2286: 2284: 2281: 2279: 2276: 2275: 2273: 2258: 2250: 2249: 2246: 2240: 2237: 2236: 2233: 2223: 2220: 2218: 2215: 2213: 2210: 2208: 2205: 2201: 2198: 2196: 2193: 2192: 2191: 2188: 2187: 2185: 2181: 2176: 2171: 2165: 2162: 2160: 2157: 2155: 2154:Samandaridine 2152: 2150: 2147: 2145: 2142: 2140: 2137: 2135: 2132: 2128: 2127:Marinobufagin 2125: 2123: 2120: 2118: 2115: 2113: 2110: 2108: 2105: 2104: 2103: 2100: 2098: 2097:Batrachotoxin 2095: 2093: 2090: 2089: 2087: 2083: 2078: 2072: 2069: 2067: 2064: 2063: 2061: 2057: 2052: 2049: 2045: 2041: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2011: 2008: 2007: 2005: 2001: 1996: 1990: 1987: 1985: 1982: 1980: 1977: 1975: 1972: 1970: 1967: 1965: 1962: 1958: 1955: 1954: 1953: 1950: 1949: 1947: 1943: 1938: 1932: 1929: 1927: 1924: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1892: 1889: 1887: 1884: 1882: 1879: 1877: 1874: 1872: 1869: 1867: 1864: 1862: 1859: 1857: 1854: 1852: 1851:Charybdotoxin 1849: 1847: 1844: 1843: 1841: 1837: 1832: 1829: 1825: 1821: 1815: 1812: 1808: 1805: 1803: 1800: 1799: 1798: 1795: 1793: 1790: 1788: 1785: 1783: 1780: 1778: 1775: 1773: 1770: 1768: 1765: 1763: 1762:Solauricidine 1760: 1758: 1755: 1753: 1750: 1748: 1745: 1743: 1740: 1738: 1735: 1733: 1730: 1728: 1725: 1723: 1720: 1718: 1715: 1713: 1710: 1708: 1707:Protoanemonin 1705: 1703: 1700: 1698: 1695: 1693: 1692:Oenanthotoxin 1690: 1688: 1685: 1683: 1680: 1678: 1675: 1673: 1670: 1668: 1665: 1663: 1660: 1658: 1655: 1653: 1650: 1648: 1645: 1643: 1640: 1638: 1635: 1633: 1630: 1628: 1625: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1603: 1600: 1599: 1597: 1594: 1590: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1568:Trichothecene 1566: 1564: 1561: 1559: 1556: 1554: 1551: 1549: 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1528:Ibotenic acid 1526: 1524: 1521: 1518: 1514: 1510: 1506: 1503: 1501: 1498: 1496: 1493: 1491: 1488: 1486: 1483: 1480: 1476: 1472: 1471:beta-amanitin 1468: 1464: 1461: 1459: 1456: 1455: 1453: 1451: 1447: 1437: 1434: 1432: 1429: 1428: 1426: 1424: 1418: 1410: 1407: 1405: 1402: 1401: 1399: 1395: 1391: 1388: 1386: 1383: 1382: 1381: 1379: 1375: 1371: 1368: 1367: 1366: 1363: 1362: 1360: 1358: 1354: 1342: 1338: 1335: 1334: 1333: 1332: 1328: 1324: 1321: 1320: 1319: 1318: 1314: 1310: 1307: 1306: 1305: 1304: 1300: 1299: 1297: 1295: 1291: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1266: 1265:Cholera toxin 1263: 1261: 1259: 1255: 1252: 1249: 1248: 1246: 1244: 1238: 1228: 1225: 1223: 1220: 1219: 1217: 1215: 1211: 1201: 1198: 1196: 1193: 1191: 1188: 1186: 1182: 1178: 1175: 1174: 1172: 1169: 1164: 1156: 1153: 1152: 1151: 1148: 1146: 1143: 1142: 1139: 1136: 1134: 1130: 1120: 1117: 1115: 1114:Anthrax toxin 1112: 1111: 1109: 1103: 1095: 1092: 1091: 1090: 1089: 1085: 1081: 1078: 1076: 1073: 1072: 1071: 1070: 1066: 1062: 1059: 1057: 1054: 1053: 1052: 1051: 1047: 1043: 1040: 1038: 1037:Tetanospasmin 1035: 1034: 1033: 1032: 1028: 1027: 1025: 1021: 1016: 1013: 1011: 1007: 1004: 1002: 996: 993: 991: 987: 984: 982: 976: 968: 965: 963: 960: 958: 955: 953: 950: 948: 945: 943: 940: 938: 935: 934: 933: 930: 929: 924: 919: 917: 912: 910: 905: 904: 901: 891: 887: 883: 879: 875: 871: 870:Life Sciences 863: 855: 851: 846: 841: 837: 833: 829: 822: 814: 810: 805: 800: 796: 792: 788: 784: 780: 773: 765: 761: 757: 753: 749: 745: 741: 737: 730: 722: 718: 714: 710: 703: 695: 691: 687: 683: 679: 675: 668: 660: 656: 652: 648: 644: 640: 633: 625: 621: 617: 613: 609: 605: 601: 597: 590: 582: 578: 574: 570: 563: 557: 551: 542: 537: 533: 529: 525: 518: 510: 503: 499: 492: 489: 487: 483: 479: 475: 471: 467: 463: 459: 458:cell membrane 455: 452: 451:Na+/K+-ATPase 448: 444: 440: 436: 426: 418: 409: 407: 399: 395: 391: 390:Viridibufagin 388: 385: 381: 377: 373: 370: 367: 363: 359: 355: 352: 349: 345: 341: 337: 334: 331: 327: 323: 322: 317: 316:Marinobufagin 314: 311: 307: 306:Japanese toad 303: 300: 297: 293: 289: 286: 283: 279: 275: 272: 269: 268:Bufo arenarum 265: 261: 257: 254: 253: 252: 249: 247: 243: 239: 235: 234:bufadienolide 226: 217: 214: 210: 206: 202: 201:parotid gland 198: 194: 190: 180: 178: 174: 170: 168: 164: 160: 159: 142: 138: 126: 120: 114: 110: 108: 107:Melting point 105: 104: 100: 98: 95: 94: 87: 85: 82: 81: 60: 57: 53: 52: 47: 40: 36: 35: 33: 30: 26: 25: 20: 2238: 2217:Calcicludine 2207:Calciseptine 2190:Bungarotoxin 2159:Tarichatoxin 2107:Arenobufagin 2071:Tetrodotoxin 2030:Tetrodotoxin 1984:Vanillotoxin 1921:Phaiodotoxin 1824:Invertebrate 1747:Solasodamine 1682:Lotaustralin 1517:Fumonisin B4 1513:Fumonisin B2 1509:Fumonisin B1 1495:Cytochalasin 1397: 1377: 1329: 1315: 1309:Superantigen 1301: 1257: 1145:Streptolysin 1086: 1067: 1048: 1029: 873: 869: 862: 835: 831: 821: 786: 782: 772: 739: 736:The Prostate 735: 729: 712: 708: 702: 677: 673: 667: 642: 638: 632: 599: 595: 589: 575:(21): 1531. 572: 568: 562: 550: 531: 527: 517: 508: 502: 490: 432: 423: 403: 398:Bufo viridis 397: 383: 379: 365: 361: 347: 343: 330:Bufo marinus 329: 319: 309: 295: 282:Bufo marinus 281: 267: 263: 256:Arenobufagin 250: 231: 196: 186: 172: 171: 163:Bufo marinus 162: 156: 136: 135: 22:Identifiers 2283:Bufanolides 2180:Snake venom 2134:Epibatidine 2122:Cinobufagin 1979:Stromatoxin 1926:Imperatoxin 1876:Scyllatoxin 1782:Tagetitoxin 1777:Swainsonine 1767:Solauricine 1732:Solamargine 1727:Scopolamine 1717:Retronecine 1583:Zearalenone 1251:Shiga toxin 1222:Cord factor 1061:Enterotoxin 1056:Alpha toxin 1050:perfringens 1042:Tetanolysin 1020:Clostridium 957:hepatotoxin 947:enterotoxin 937:cardiotoxin 392:, from the 374:, from the 356:, from the 338:, from the 304:, from the 302:Gamabufagin 290:, from the 288:Cinobufagin 276:, from the 258:, from the 228:Gamabufagin 209:snake venom 139:is a toxic 111:212-213 ËšC 101:1.240 g/cm 49:Properties 39:102648-38-4 2272:Categories 2212:Taicatoxin 2149:Samandarin 2102:Bufotoxins 2066:Ciguatoxin 2044:Vertebrate 1989:Huwentoxin 1969:Cupiennins 1952:Latrotoxin 1896:Kaliotoxin 1866:Margatoxin 1856:Maurotoxin 1797:Toxalbumin 1787:Tinyatoxin 1772:Strychnine 1757:Solasonine 1752:Solasodine 1737:Solanidine 1657:Falcarinol 1642:Delphinine 1558:Phalloidin 1548:Ochratoxin 1543:Orellanine 1533:Lolitrem B 1500:Ergotamine 1450:Mycotoxins 1294:Mechanisms 1253:/Verotoxin 1190:Exfoliatin 1150:Leukocidin 967:phototoxin 962:neurotoxin 495:References 470:inhibition 454:inhibitors 441:, causing 406:anti-tumor 382:, synonym 364:, synonym 346:, synonym 266:, synonym 213:epinephrin 161:, synonym 84:Molar mass 29:CAS Number 2117:Bufotenin 2112:Bufotalin 2082:Amphibian 2025:Saxitoxin 2015:Eledoisin 2010:Conotoxin 1881:Hefutoxin 1697:Oleandrin 1677:Linamarin 1667:Helenalin 1627:Cicutoxin 1622:Chaconine 1602:Amygdalin 1573:Vomitoxin 1523:Gliotoxin 1505:Fumonisin 1458:Aflatoxin 1421:Virulence 1357:Endotoxin 1088:botulinum 1069:difficile 979:Bacterial 952:hemotoxin 942:cytotoxin 447:analgesic 435:digitalis 412:Synthesis 326:cane toad 278:cane toad 274:Bufotalin 220:Chemistry 197:Bufo agua 177:bufotoxin 167:digitalis 2257:Category 2020:Onchidal 2000:Mollusca 1911:Bestoxin 1906:Birtoxin 1871:Slotoxin 1861:Agitoxin 1836:Scorpion 1792:Tomatine 1742:Solanine 1687:Mimosine 1662:Gossypol 1647:Divicine 1612:Antiarin 1607:Anisatin 1538:Muscimol 1490:Citrinin 1463:Amatoxin 1409:Cry34Ab1 1337:AB toxin 1331:type III 1243:negative 1001:positive 990:Exotoxin 890:12467910 854:23317181 764:36322137 756:12497584 659:21416078 624:30031690 511:: 568-9. 466:melanoma 462:leukemia 340:oak toad 324:and the 17:Bufagin 2175:Reptile 1637:Daphnin 1632:Coniine 1617:Brucine 1578:Zeranol 1553:Patulin 1400:toxins 1390:Cry3Bb1 1370:Lipid A 1317:type II 1258:E. coli 1010:Bacilli 813:8063619 804:5919529 721:7967697 694:4643019 616:9736996 556:bufagin 482:digoxin 408:drugs. 318:, from 238:lactone 183:History 173:Bufagin 141:steroid 137:Bufagin 97:Density 89:402.531 2047:toxins 1942:Spider 1916:BmKAEP 1886:HgeTx1 1827:toxins 1702:Persin 1595:toxins 1423:factor 1404:Cry6Aa 1396:Other 1385:Cry1Ac 1303:type I 1106:Other: 1031:tetani 981:toxins 932:Toxins 888:  852:  811:  801:  762:  754:  719:  692:  657:  622:  614:  242:pyrone 1974:PhTx3 1891:HsTx1 1814:Tutin 1807:Ricin 1802:Abrin 1672:Ledol 1593:Plant 1185:delta 1133:Cocci 1094:Botox 760:S2CID 620:S2CID 464:and 246:furan 2056:Fish 1964:CSTX 1241:Gram 1181:beta 999:Gram 886:PMID 850:PMID 809:PMID 752:PMID 717:PMID 690:PMID 655:PMID 612:PMID 191:and 1931:Pi3 1901:Lq2 1341:AB5 878:doi 840:doi 799:PMC 791:doi 744:doi 682:doi 647:doi 604:doi 577:doi 573:LVI 536:doi 532:104 488:). 240:(α- 2274:: 1511:, 1477:, 1473:, 1469:, 884:. 874:72 872:. 848:. 836:13 834:. 830:. 807:. 797:. 787:85 785:. 781:. 758:. 750:. 740:54 738:. 713:14 711:. 688:. 678:37 676:. 653:. 643:28 641:. 618:. 610:. 600:15 598:. 571:. 530:. 526:. 386:); 368:); 350:); 332:); 312:); 298:); 284:); 270:); 149:34 145:24 71:34 65:24 2182:: 2177:/ 2084:: 2058:: 2002:: 1944:: 1838:: 1519:) 1507:( 1481:) 1465:( 1339:/ 1267:/ 1183:/ 1179:/ 1080:B 1075:A 1022:: 922:e 915:t 908:v 892:. 880:: 856:. 842:: 815:. 793:: 766:. 746:: 723:. 696:. 684:: 661:. 649:: 626:. 606:: 583:. 579:: 544:. 538:: 400:) 396:( 378:( 360:( 342:( 328:( 308:( 294:( 262:( 153:5 151:O 147:H 143:C 77:5 74:O 68:H 62:C

Index

CAS Number
102648-38-4
Chemical formula
Molar mass
Density
Melting point
standard state
Infobox references
steroid
Rhinella marina
digitalis
bufotoxin
John Jacob Abel
David I. Macht
parotid gland
central nervous system
snake venom
epinephrin

bufadienolide
lactone
pyrone
furan
Arenobufagin
Argentine toad
Bufotalin
cane toad
Cinobufagin
Chusan Island toad
Gamabufagin

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