Direct Blue 2 (Technical Grade)

CAS: 2429-73-4

Ref. TR-D494985

Product Information

• Name: Direct Blue 2 (Technical Grade)
• Synonyms: 2,7-Naphthalenedisulfonic acid, 5-amino-3-[2-[4'-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-4-hydroxy-, sodium salt (1:3), 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 (9CI), C.I. Direct Blue 2 (7CI), C.I. Direct Blue 2, trisodium salt (8CI), Direct Diazo Black S (6CI), 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 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, Chrome Leather 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, Diazine Black BHC, Diazine Black H, Diazine Black HDW, Diazine Black HNJ, Diazo Black BH, 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 Navy Blue BH, Diazol Black BH, Diazophenyl Black BH, Diphenyl Blue Black GHS, Diphenyl Blue Black MBH, Direct Black BH, Direct Blue Black BH, Direct Dark Blue BH, Direct Diazo Black, Direct Diazo Black C, Direct Diazo Black N, Direct Navy 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, (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, 2,7-Naphthalenedisulfonic acid, 5-amino-3-[2-[4′-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-4-hydroxy-, sodium salt (1:3), 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, 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, Calcomine Diazo Black, Chlorazol Black Bh, Chlorazol Leather Black Bh, Chrome Leather Black, Chrome Leather Dark Blue, Diamine Black, Diazine Black, Diazo Black, Diazo Fast Black, Diphenyl Blue Black, Direct Blue 2, Direct Diazo Black S, 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
• CAS: 2429-73-4

Description

Applications Direct Blue 2 is an organic azo dye and ground water pollutant, removed via enzymic decolorization by laccase.
References Akkaya, A.; et al.: Anal. Lett., 49, 790 (2016).

• Brand: TRC

Chemical properties

• Molecular weight: 830.71
• Formula: C₃₂H₂₁N₆Na₃O₁₁S₃
• Color/Form: Dark Blue to Black Solid
• SMILES: Nc1ccc2cc(S(=O)(=O)O)c(/N=N/c3ccc(-c4ccc(/N=N/c5c(S(=O)(=O)O)cc6cc(S(=O)(=O)[O-])cc(N)c6c5[O-])cc4)cc3)c([O-])c2c1.[Na+].[Na+].[Na+]