10H-BENZO(b)XANTHENE-7,10,12-TRIONE, 6,11-DIHYDROXY-3,8-DIMETHOXY-1-METHYL-, 6-A 10H-Benzo(b)xanthene-7,10,12-trione, 6,11-dihydroxy-3,8-dimethoxy-1-methyl-, 6-acetate 33791-86-5 6,11-Dihydroxy-3,8-dimethoxy-1-methyl-10H-benzo(b)xanthene-7,10,12-trione 6-acetate Monoacetyl-O-bikaverin