4-[6-[4-Chloro-6-(4-methoxy-2-sulfophenylamino)-1,3,5-triazin-2-ylmethylamino]-1-hydroxy-3-sulfo-2-naphthalenylazo]benzoic acid

4-[[6-[[4-chloro-6-[(4-methoxy-2-sulphophenyl)amino]-1,3,5-triazin-2-yl]methylamino]-1-hydroxy-3-sulpho-2-naphthyl]azo]benzoic acid