1-Carbethoxy-4-methyl-6-(4-toluidino)-2-oxo-3-azabenzanthrone 3H-Dibenz(f,ij)isoquinoline-1-carboxylic acid, 2,7-dihydro-4-methyl-6-((4-methylphenyl)amino)-2,7-dioxo-, ethyl ester 68833-64-7 EINECS 272-407-3 Ethyl 2,7-dihydro-4-methyl-6-((4-methylphenyl)amino)-2,7-dioxo-3H-dibenz(f,ij)isoquinoline-1-carboxylate