1H-2-benzopyran-1-one, 3-amino-4-[(4-methylphenyl)amino]- 3-amino-4-(4-toluidino)-1H-isochromen-1-one 3-amino-4-[(4-methylphenyl)amino]-1H-isochromen-1-one InChI=1/C16H14N2O2/c1-10-6-8-11(9-7-10)18-14-12-4-2-3-5-13(12)16(19)20-15(14)17/h2-9,18H,17H2,1H