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); 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-2,7-Naphthalenedisulfonic acid, trisodium salt; airedale black bhd; azomine black bh; benzanil black bh; diamine black; diazine black; diazo black; diazo fast black; diphenyl blue black; direct diazo black; Direct Blue 2; calcomine diazo black; CHLORAZOL BLACK BH; chlorazol leather black bh; chrome leather black; chrome leather dark blue; melantherine bh; pontamine deep blue bh; tertrodirect black; union fast navy blue ds; vondacel dark blue bh; zambesi dark blue bh; trisodium (3Z)-5-amino-3-(2-{4'-[(2Z)-2-(7-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazinyl]biphenyl-4-yl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate; (3E)-5-amino-3-(2-{4'-[(2Z)-2-(7-amino-1-oxo-3-sulfo-3,7-dihydronaphthalen-2(1H)-ylidene)hydrazinyl]biphenyl-4-yl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
