3841-15-4 C.I. DIRECT BLUE 148, TRISODIUM SALT EINECS 223-334-0 Trisodium 5-((4-((4-((6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo)-1-naphthyl)azo)-6-sulphonato-1-naphthyl)azo)salicylate