2,7-Naphthalenedisulfonic acid, 4-[[4-[(6-anilino-1-hydroxy-3-sulfo-2-naphthyl)azo]-1-naphthyl]azo]-5-hydroxy-, trisodium salt 2,7-Naphthalenedisulfonic acid, 5-hydroxy-4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt 6483-67-6 Benzo Fast Heliotrope 2RL Brilliant Fast Blue GG C.I. 27950 NSC75916