116675-43-5 179472-56-1 2,7-Naphthalenedisulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt 2,7-Naphthalenedisulfonic acid, 3,3'-((4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt 2602-46-2 Airedale Blue 2BD Aizen Direct Blue 2BH Amanil Blue 2BX Atlantic Blue 2B Atul Direct Blue 2B Azocard Blue 2B Azomine Blue 2B Belamine Blue 2B Bencidal Blue 2B Benzanil Blue 2B Benzo Blue BBA-CF Benzo Blue BBN-CF Benzo Blue GS Blue 2B Blue 2B salt Brasilamina Blue 2B C.I. 22610 C.I. Direct Blue 6 C.I. Direct Blue 6, tetrasodium salt C.I. Direct Blue 6, tetrasodium salt (8CI) CCRIS 166 Calcomine Blue 2B Chloramine Blue 2B Chlorazol Blue B Chlorazol Blue BP Chrome Leather Blue 2B