30517-66-9 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 1,2,3a,12c-tetrahydro-6,8-dihydroxy-, (-)- 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 1,2,3a,12c-tetrahydro-6,8-dihydroxy-, (3aR,12cS)- BRN 1401707 CCRIS 3230 Demethyldihydrosterigmatocystin Dihydrodemethylsterigmatocystin