2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-hydroxy-, trisodium salt 2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, trisodium salt 2429-73-4 52350-22-8 Airedale Black BHD Aizen Direct Black BH Altazine Black BH Amanil Developed Black BHSW Atul Developed Black BT Azine Diazo Black BHK Azocard Blue BH Azomine Black BH Belamine Diazo Black BH Bencidal Navy Blue BH Benzanil Black BH Benzo Black Blue BH Benzo Black Blue FBH Blue BH Brasilazol Black BG Brasilazol Black BH C.I. 22590 C.I. Direct Blue 2 C.I. Direct Blue 2 (VAN) C.I. Direct Blue 2, trisodium salt C.I. Direct Blue 2, trisodium salt (8CI) CCRIS 6236 CI 22590 CI Direct Blue 2,