2,6,8-Trihydroxy-3-methyl-benzo[alpha]anthracene-1,4,7,12-tetraone 2,6,8-trihydroxy-3-methyltetraphene-1,4,7,12-tetrone InChI=1/C19H10O7/c1-6-15(22)8-5-10(21)13-14(12(8)19(26)16(6)23)17(24)7-3-2-4-9(20)11(7)18(13)25/h2-5,20-21,23H,1H Oviedomycin benz[a]anthracene-1,4,7,12-tetrone, 2,6,8-trihydroxy-3-methyl-