(1S-(1alpha,6abeta,9abeta))-2,3,6a,9a-Tetrahydro-1-hydroxy-4-methoxycyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-11(1H)-one 29611-03-8 AFL Aflatoxicol Aflatoxicol natural epimer Aflatoxin Ro CCRIS 11 Cyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-11(1H)-one, 2,3,6a,9a-tetrahydro-1-hydroxy-4-methoxy-, (1S,6aR,9aS)- EINECS 249-727-7