2-[[4-[[4-[(4,6-Dichloro-1,3,5-triazin-2-yl)amino]-5-sulfo-1-naphtyl]azo]-2,5-dimethylphenyl]azo]-1,4-benzenedisulfonic acid

2-[[4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-sulpho-1-naphthyl]azo]-2,5-dimethylphenyl]azo]benzene-1,4-disulphonic acid