Synonyms: trisodium 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulphonatonaphthyl]azo]-2,5-dimethylphenyl]azo]benzene-1,4-disulphonate;1,4-Benzenedisulfonic acid, 2-4-4-(4-amino-6-chloro-1,3,5-triazin-2-yl)amino-5-sulfo-1-naphthalenylazo-2,5-dimethylphenylazo-, trisodium salt;2-[4-[4-(4-Amino-6-chloro-1,3,5-triazin-2-ylamino)-5-(sodiosulfo)-1-naphthalenylazo]-2,5-dimethylphenylazo]-1,4-benzenedisulfonic acid disodium salt;5-[4-[2,5-Bis(sodiooxysulfonyl)phenylazo]-2,5-dimethylphenylazo]-8-[(4-chloro-6-amino-1,3,5-triazine-2-yl)amino]naphthalene-1-sulfonic acid sodium salt