NCIt synonyms : 3-hydroxy-4-(2-(4-sulfo-1-naphthalenyl)diazenyl)-2,7-naphthalenedisulfonic Acid Sodium
Salt (1:3); 1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic Acid Trisodium Salt; Trisodium 3-hydroxy-4-((e)-(4-sulfonato-1-naphthyl)diazenyl)naphthalene-2,7-disulfonate; Red No. 2; C.I. Food Red 9; Acid Red 27; C.I. 16185; FD C Red No 2; FD&C Red No. 2;