Synonyms:
3-hydroxy-4-[(4-sulfophenyl)azo]-2,7-napthalenedisulfonic acid trisodium ; trisodium 3-hydroxy-4-[(4-sulphonatophenyl)azo]naphthalene-2,7-disulphonate ; 3-hydroxy-4-[(4-sulfophenyl)azo]naphthalene-2,7-disulfonic acid trisodium salt ; 3-hydroxy-4-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acidtrisodium salt ; 3-hydroxy-4-(p-sodiooxysulfonylphenylazo)-2,7-naphthalenedisulfonic acid disodium salt