2,7-Naphthalenedisulfonic acid, {5-amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphthalenyl)azo]-3} {,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-,} trisodium salt 5-Amino-4-hydroxy-3-((4'-((1-hydroxy-4-sulfo-2-naphthyl)diazenyl)-3,3'-dimethyl[1,1'-biphenyl]-4-yl)diazenyl)-2,7-naphthalenedisulfonic acid 5-Amino-4-hydroxy-3-({4'-[(1-hydroxy-4-sulfo-2-naphthyl)diazenyl]-3,3'-dimethyl-1,1'-biphenyl-4-yl}diazenyl)naphthalene-2,7-disulfonic acid- 6420-09-3 (TRISODIUM SALT) AIDS-155947 AIDS155947 Azocard Blue BX Benzanil Blue BX Benzo Blue BS Blue RX Brasilamina Blue BR C.I. Direct Blue 21 C.I. Direct Blue 21 (*trisodium salt*) C.I. Direct Blue 21, trisodium salt Chloramine Blue BX Chlorazol Blue 2R Diaphtamine Blue BX Diazol Blue BX Diazol Blue V Diphenyl Blue BXR Direct Blue 21 Direct Blue BX Direct Blue BXA Direct Blue BXC Direct Blue BXR Direct Blue MBX Direct Blue MBX (*trisodium salt*) Enianil Blue BX Enianil Blue BX (*trisodium salt*) Hispamin Blue BXB Hispamin Blue