2,3-Dichloroaflatoxin B(sub 1) 58209-98-6 Aflatoxin B1 2,3-dichloride Aflatoxin B1 dichloride Aflatoxin B1-2,3-dichloride Cyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,11-dione, 2,3,6a,8,9,9a-hexahydro-8,9-dichloro-4-methoxy-, (6aS-(6a-alpha,8-beta,9-alpha,9a-alpha))-