sodium 1-ethyl 2-[[3-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulphonato-1-anthryl)amino]-p-tolyl]methyl]benzoate

2-[[3-[[[4-Amino-9,10-dihydro-9,10-dioxo-3-(sodiosulfo)anthracen]-1-yl]amino]-4-methylphenyl]methyl]benzoic acid ethyl ester