Pigment Blue 57 3-Methyl-4-[[4-[[4-[(2-methylphenyl)amino]phenyl][4-[(2-methylphenyl)imino]-2,5-cyclohexadien-1-ylidene]methyl]phenyl]amino]benzenesulfonic acid C.I.42795 C.I.Pigment Blue 57 Reflex Blue RB 4-[[4-[bis[4-(2-methylanilino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]amino]-3-methylbenzenesulfonic acid Benzenesulfonic acid, 3-methyl-4-[[4-[[4-[(2-methylphenyl)amino]phenyl][4-[(2-methylphenyl)imino]-2,5-cyclohexadien-1-ylidene]methyl]phenyl]amino]-