117859-29-7 2,3-Epoxyaflatoxin B1 42583-46-0 67337-06-8 90358-59-1 Aflatoxin B1 2,3-epoxide Aflatoxin B1 8,9-epoxide Aflatoxin B1 8,9-oxide Aflatoxin B1 epoxide Aflatoxin B1 exo-8,9-oxide Aflatoxin B1-2,3-oxide BRN 5154814 CCRIS 5355 Cyclopent(c)oxireno(4',5')furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,10-dione, 2,3,6a,7a,8a,8b-hexahydro-4-methoxy-, (6aS,7aS,8aR,8bR)- Cyclopent(c)oxireno(4',5')furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,10-dione, 2,3,6a,7a,8a,8b-hexahydro-4-methoxy-, (6aS-(6a-alpha,7a-beta,8a-beta,8b-alpha))- exo-Aflatoxin B1-8,9-epoxide