58086-34-3 6,8-Dihydroxy-3a,12c-dihydro-7H-furo(3',2':4,5)furo(2,3-c)xanthen-7-one diacetate 7H-Furo(3',2':4,5)furo(2,3-c)xanthen-7-one, 3a,12c-dihydro-6,8-dihydroxy-, diacetate Demethyl-diacetyl-sterigmatocystin