1-Hydroxy-O-methylsterigmatocystin 12c-Hydroxy-6,8-dimethoxy-3a,12c-dihydro-7H-furo(3',2':4,5)furo(2,3-c)xanthen-7-one 20797-80-2 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 3a,12c-dihydro-12c-hydroxy-6,8-dimethoxy- (VAN) Aspertoxin HOMST