CAS 2429-73-4

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)

Description:

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), commonly referred to by its CAS number 2429-73-4, is a complex organic compound characterized by its azo dye structure. This substance features multiple sulfonic acid groups, which enhance its solubility in water and contribute to its application in dyeing processes. The presence of amino and hydroxy groups indicates potential reactivity and functionality, making it suitable for various chemical reactions. Its azo linkage, characterized by the -N=N- bond, is significant in dye chemistry, providing vivid colors and stability. The sodium salt form indicates that it is likely used in aqueous solutions, facilitating its use in industrial applications such as textiles and paper. Overall, this compound exhibits properties typical of azo dyes, including colorfastness and the ability to form complexes with metal ions, which can be leveraged in various chemical and industrial applications.

Formula: C₃₂H₂₄N₆O₁₁S₃·3Na

InChI: InChI=1S/C32H24N6O11S3.3Na/c33-20-6-1-18-12-26(51(44,45)46)29(31(39)24(18)14-20)37-35-21-7-2-16(3-8-21)17-4-9-22(10-5-17)36-38-30-27(52(47,48)49)13-19-11-23(50(41,42)43)15-25(34)28(19)32(30)40;;;/h1-15,39-40H,33-34H2,(H,41,42,43)(H,44,45,46)(H,47,48,49);;;

InChI key: InChIKey=ISKHIWSUDPZKOU-UHFFFAOYSA-N

SMILES: OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC=C(C=C3)C4=CC=C(N=NC=5C(S(=O)(=O)O)=CC6=C(C5O)C=C(N)C=C6)C=C4)C=C(S(=O)(=O)O)C=C2N.[Na]

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 2
• 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

Direct Blue 2

CAS: 2429-73-4

Direct Blue 2

Formula: C₃₂H₂₁N₆Na₃O₁₁S₃

Purity: ≥95%

Molecular weight: 830.7

Ref: 54-OR1077976

Chlorazol black bh

CAS: 2429-73-4

Formula: C₃₂H₂₁N₆Na₃O₁₁S₃

Color and Shape: Solid

Molecular weight: 830.7071

Ref: IN-DA003OS6

C.I. Direct Blue 2

CAS: 2429-73-4

C.I. Direct Blue 2 is an agent of dye.

Formula: C₃₂H₂₁N₆Na₃O₁₁S₃

Purity: 98%

Color and Shape: Solid

Molecular weight: 830.7

Ref: TM-T20031

Direct Blue 2 (Technical Grade)

Controlled Product

CAS: 2429-73-4

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).

Formula: C₃₂H₂₁N₆Na₃O₁₁S₃

Color and Shape: Neat

Molecular weight: 830.71

Ref: TR-D494985