1,3-Naphthalenedisulfonic acid, 7-[[4-[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]benzoyl]amino]-2-methylphenyl]azo]-, trisodium salt 6104-56-9 C.I. 28255 C.I. Direct Orange 74 C.I. Direct Orange 74, trisodium salt Diazanil Orange RR Diazo Orange 2R NSC47770 Para Orange RR Conc. CF Phenazo Orange RR Pontamine Diazo Orange 2R