2,7-Naphthalenedisulfonicacid,5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-,trisodium salt (9CI); C.I. Direct Blue 2 (7CI); C.I. Direct Blue 2, trisodiumsalt (8CI); Direct Diazo Black S (6CI); Airedale Black BHD; Aizen Direct BlackBH; Altazine Black BH; Amanil Developed Black BHSW; Atul Developed Black BT;Azine Diazo Black BHK; Azocard Blue BH; Azomine Black BH; Belamine Diazo BlackBH; Bencidal Navy Blue BH; Benzanil Black BH; Benzo Black Blue BH; Benzo BlackBlue FBH; Blue BH; Brasilazol Black BH; C.I. 22590; Calcoloid Diazo Black BHL;Calcomine Diazo Black BHD; Calcomine Diazo Black BTCW; Chloramine Black BH;Chlorazol Black BH; Chlorazol Leather Black BH; Chrome Leather Black BH; ChromeLeather Black CR; Chrome Leather Black DS; Chrome Leather Dark Blue BHM;Cutamin Dark Blue CB; Diacotton Black BH; Diamine Black BH; Diamine Black BHM;Diaminogene Velour Black B; Dianil Dark Blue H; Diaphtamine Black BH; DiazineBlack BHC; Diazine Black H; Diazine Black HDW; Diazine Black HNJ; Diazo BlackBH; Diazo Black BHN-CF; Diazo Black BHSW; Diazo Black BHSWK; Diazo Black CR;Diazo Direct Black N; Diazo Fast Black BH; Diazo Fast Black MBH; Diazo NavyBlue BH; Diazol Black BH; Diazophenyl Black BH; Diphenyl Blue Black GHS;Diphenyl Blue Black MBH; Direct Black BH; Direct Blue Black BH; Direct DarkBlue BH; Direct Diazo Black; Direct Diazo Black C; Direct Diazo Black N; DirectNavy Blue BH; Eniazol Blue Black BHN; Fenamin Navy Blue H; Fixanol Blue BH;Indoxine KL; Japanol Black BHK; Kayaku Direct Black BH; Melantherine BH;Melantherine BHX; Mitsui Direct Black BH; Navy Blue EMBL; Neklamin Black BH;Orbamin Black BH; Paramine Black BH; Phenazo Black BH; Pheno Navy Blue;Pontamine Deep Blue BH; Pontamine Diazo Black BHSW; Symulon Direct Black BH;Tertrodirect Black BH; Tertrodirect Black BHS; Union Fast Navy Blue DS;Vondacel Dark Blue BH; Zambesi Dark Blue BH