30461-65-5 4-19-00-05220 (Beilstein Handbook Reference) 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 3a,12c-dihydro-6,8-dihydroxy-, (-)- 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 3a,12c-dihydro-6,8-dihydroxy-, (3aR,12cS)- BRN 0050791 CCRIS 3229 Demethylsterigmatocystin