Direct Blue 2

CAS: 2429-73-4

Ref. 3D-CAA42973

Product Information

• Name: Direct Blue 2
• Synonyms: (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, 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, Calcoloid Diazo Black BHL, Calcomine Diazo Black, Calcomine Diazo Black BHD, Calcomine Diazo Black BTCW, Chloramine Black BH, Chlorazol Black Bh, Chlorazol Leather Black Bh, Chrome Leather Black, Chrome Leather Black BH, Chrome Leather Black CR, Chrome Leather Black DS, Chrome Leather Dark Blue, Chrome Leather Dark Blue BHM, Cutamin Dark Blue CB, Diacotton Black BH, Diamine Black, Diamine Black BH, Diamine Black BHM, Diaminogene Velour Black B, Dianil Dark Blue H, Diaphtamine Black BH, Diazine Black, Diazine Black BHC, Diazine Black H, Diazine Black HDW, Diazine Black HNJ, Diazo Black, Diazo Black BH, Diazo Black BHN-CF, Diazo Black BHSW, Diazo Black BHSWK, Diazo Black CR, Diazo Direct Black N, Diazo Fast Black, Diazo Fast Black BH, Diazo Fast Black MBH, Diazo Navy Blue BH, Diazol Black BH, Diazophenyl Black BH, Diphenyl Blue Black, 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 Diazo Black S, 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 BHX, Melantherine Bh, 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, Tertrodirect Black BH, Tertrodirect Black BHS, 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, C.I. Direct Blue 2, C.I. Direct Blue 2 (VAN), C.I. Direct Blue 2, trisodium salt, C.I. Direct Blue 2, C.I. Direct Blue 2, trisodium salt, C.I. 22590, C.I. Direct Blue 2, trisodium salt (8CI)

Description

Direct Blue 2 is a reactive dye that can be used as a redox indicator. This dye has been used in the treatment of wastewater and waste water, where it is often used in conjunction with biological treatment. Direct Blue 2 is also found in the electrophotographic process and is used to develop black-and-white images on paper. The diameter of Direct Blue 2 molecules ranges from 7 to 10 nm and they are amides. They have a high degree of solubility in organic solvents such as benzene, chloroform, and ethanol, which makes them useful for dyeing cellulose fibers. Direct blue 2 has two electron-donating groups: an amide group and an aliphatic hydrocarbon chain. The molecule contains one fatty acid that can be metabolized by peroxidases or other microorganisms into short-chain carboxylic acids that are biodegradable.

• Brand: Biosynth

Chemical properties

• Molecular weight: 830.7 g/mol
• Formula: C₃₂H₂₁N₆Na₃O₁₁S₃
• Purity: Min. 95%
• Color/Form: Powder