tetrasodium 2-[[8-[[4-chloro-6-[[4-(6-methyl-5-sulphonatobenzothiazol-2-yl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]benzoate

2-[[8-[[4-Chloro-6-[[4-[6-methyl-5-(sodiosulfo)benzothiazol-2-yl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-bis(sodiosulfo)-2-naphtyl]azo]benzoic acid sodium salt