Nome Químico: 3,8-Dihydroxy-1-methyl-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid
Sorrisos: O=C(C(C(C)=C1C2=O)=C(O)C=C1C(C3=C2C(O)=CC=C3)=O)O
Inchi: InChI=1S/C15H10O7/c16-4-8-9(18)3-7-12(14(8)21)15(22)11-6(13(7)20)1-5(17)2-10(11)19/h1-3,16-19,21H,4H2