2-Amino-5-((4-amino-5-methyl-3-sulfophenyl)(4-imino-5-methyl-3-sulfo-2,5-cyclohexadien-1-ylidene)methyl)-3-methylbenzenesulfonic acid, disodium salt 71130-65-9 Benzenesulfonic acid, 2-amino-5-((4-amino-3-methyl-5-sulfophenyl)(4-imino-3-methyl-5-sulfo-2,5-cyclohexadien-1-ylidene)methyl)-3-methyl-, disodium salt Benzenesulfonic acid, 2-amino-5-((4-amino-3-methyl-5-sulfophenyl)(4-imino-3-methyl-5-sulfo-2,5-cyclohexadien-1-ylidene)methyl)-3-methyl-, disodiumsalt