pentasodium 2-[[4-chloro-6-[[8-hydroxy-3,6-disulphonato-7-[(1-sulphonato-2-naphthyl)azo]-1-naphthyl]amino]-1,3,5-triazin-2-yl]amino]-5-sulphonatobenzoate

2-[[4-Chloro-6-[[8-hydroxy-3,6-di(sodiosulfo)-7-[[1-(sodiosulfo)-2-naphthalenyl]azo]-1-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-5-(sodiosulfo)benzoic acid sodium salt