2-Amino-5-(4-amino-5-carboxy-3,6-dioxo-cyclohexa-1,4-dienyl)-6-hydroxy-3-methoxy-benzoic acid 2-amino-5-(4-amino-5-carboxy-3,6-dioxocyclohexa-1,4-dien-1-yl)-6-hydroxy-3-methoxybenzoic acid Blennione InChI=1/C15H12N2O8/c1-25-7-3-5(13(20)9(11(7)17)15(23)24)4-2-6(18)10(16)8(12(4)19)14(21)22/h2-3,20H,16-17H2,1H3,(H,21,22)(H,23,24 benzoic acid, 2-amino-5-(4-amino-5-carboxy-3,6-dioxo-1,4-cyclohexadien-1-yl)-6-hydroxy-3-methoxy-