trisodium 2-[[4-[[4-[(4-chloro-6-phenyl-1,3,5-triazin-2-yl)amino]-7-sulphonato-1-naphthyl]azo]-2,5-dimethylphenyl]azo]benzene-1,4-disulphonate

2-[[4-[[4-[(4-Chloro-6-phenyl-1,3,5-triazin-2-yl)amino]-7-(sodiooxysulfonyl)-1-naphthalenyl]azo]-2,5-dimethylphenyl]azo]-1,4-benzenedisulfonic acid disodium salt