141869-53-6 Benzo(a)naphthacene-2-carboxylic acid, 5,6,8,13-tetrahydro-1,5,7,9,11,14-hexahydroxy-3-methyl-8,13-dioxo- Benzo(alpha)naphthacene-2-carboxylic acid, 5,6,8,13-tetrahydro-1,5,7,9,11,14-hexahydroxy-3-methyl-8,13-dioxo- Pradimicin Q