Cas no 2429-73-4 (Direct Blue 2 (Technical Grade))

Direct Blue 2 (Technical Grade) is a synthetic diazo dye primarily used in industrial applications such as textile dyeing and paper coloring. Its high affinity for cellulose fibers ensures uniform and durable coloration, making it suitable for large-scale production processes. The technical-grade formulation offers cost efficiency while maintaining consistent performance in demanding environments. Its stability under varying pH and temperature conditions enhances its utility in diverse manufacturing settings. The product is supplied as a powdered concentrate, facilitating easy handling and storage. Compliance with industry standards ensures reliability for bulk applications where precise color fastness and reproducibility are critical.
Direct Blue 2 (Technical Grade) structure
2429-73-4 structure
Product Name:Direct Blue 2 (Technical Grade)
CAS No:2429-73-4
MF:C32H21N6Na3O11S3
MW:830.707055807114
MDL:MFCD00059132
CID:254987
PubChem ID:87565644
Update Time:2025-05-20

Direct Blue 2 (Technical Grade) Chemical and Physical Properties

Names and Identifiers

    • 2,7-Naphthalenedisulfonicacid,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)
    • Direct Blue 2
    • 2,7-Naphthalenedisulfonicacid,5-amino-3-[2-[4'-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl][1,1'-biphenyl]-4-yl]dia
    • CHLORAZOL BLACK BH
    • azomine black bh
    • diamine black
    • diazo black
    • DIAZO BLACK BH
    • DIAZO BLACK BHN
    • DirectBlueBH
    • melantherine bh
    • Diazophenyl Black BH
    • Pontamine Deep Blue BH
    • C.I. Direct Blue 2
    • Calcomine Diazo Black BHD
    • Navy Blue EHBL
    • Brasilazol Black BG
    • Indoxine KL
    • Melantherine BHX
    • Diazine Black H
    • Pheno Navy Blue
    • Fixanol Blue BH
    • Azocard Blue BH
    • Diazol Black BH
    • Direct Black BH
    • Diazo Black CR
    • Phenazo Black BH
    • Diamine Black BH
    • Paramine Black BH
    • Neklamin Black BH
    • Benzanil Black BH
    • Altazine Black BH
    • Navy Blue EMBL
    • Blue BH
    • Vondacel Dark Blue BH
    • CCRIS 6236
    • Diphenyl Blue Black MBH
    • CI DIRECT BLUE 2
    • Direct Navy Blue BH
    • Atul Developed Black BT
    • CI Direct Blue 2, trisodium salt
    • Diazo Black BHSWK
    • 2429-73-4
    • NSC 75779
    • NSC-75779
    • Diazo Direct Black N
    • EINECS 219-384-8
    • Diazo Navy Blue BH
    • HSDB 4219
    • Chlorazol Leather Black BH
    • 2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-hydroxy-, trisodium salt
    • CHLORAZOLBLACKBH
    • MFCD00059132
    • Azine Diazo Black BHK
    • Diazine Black HDW
    • Bencidal Navy Blue BH
    • Mitsui Direct Black BH
    • Direct Blue 2 (Technical Grade)
    • Calcomine Diazo Black BTCW
    • Diphenyl Blue Black GHS
    • Fenamin Navy Blue H
    • Eniazol Blue Black BHN
    • AKOS004901487
    • sodium 5-amino-3-((E)-(4'-((E)-(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl)biphenyl-4-yl)diazenyl)-4-hydroxynaphthalene-2,7-disulfonate
    • Direct Dark Blue BH
    • Direct Blue Black BH
    • TRISODIUM 5-AMINO-3-((4'-((7-AMINO-1-HYDROXY-3-SULPHONATO-2- NAPHTHYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-4-HYDROXYNAPHTHALENE- 2,7-DISULPHONATE
    • AKOS024421048
    • Pontamine Diazo Black BHSW
    • Diazo Black BHN-CF
    • Benzo Black Blue FBH
    • sodium 5-amino-3-((E)-(4'-((E)-(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-4-hydroxynaphthalene-2,7-disulfonate
    • Chrome Leather Black CR
    • Diazo Black BHSW
    • Direct Diazo Black C
    • DTXSID6025191
    • Diamine Black BHM
    • Diaphtamine Black BH
    • C.I. Direct Blue 2, trisodium salt
    • 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)
    • Direct Diazo Black N
    • Trisodium 5-amino-3-((4'-((7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxynaphthalene-2,7-disulphonate
    • NS00047371
    • Kayaku Direct Black BH
    • Chrome Leather Dark Blue BHM
    • Q27277129
    • TriNa 5-amino-3-4'-(7-amino-1-OH-3-sulphonato-2-naphthyl)azo1,1'-biphenyl-4-ylazo-4-OHnaphthalene-2,7-disulphonate
    • Chloroazol Black BH
    • Aizen Direct Black BH
    • Direct Diazo Black S
    • C.I. 22590
    • Diazine Black HNJ
    • Airedale Black BHD
    • Diaminogene Velour Black B
    • Cutamin Dark Blue CB
    • Direct Diazo Black
    • Dianil Dark Blue H
    • Diacotton Black BH
    • Diazine Black BHC
    • Pontamine Diazo Black BHid and BH
    • trisodium;5-amino-3-[[4-[4-[(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2, 7-disulfonate
    • UNII-EE5HVP9RA8
    • trisodium;5-amino-3-[[4-[4-[(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
    • Calcoloid Diazo Black BHL
    • Tertrodirect Black BHS
    • Diazo Fast Black MBH
    • Chrome Leather Black BH
    • NCI-C61110
    • W-109784
    • Chrome Leather Black DS
    • TriNa 5-amino-3-[[4'-[(7-amino-1-OH-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-OHnaphthalene-2,7-disulphonate
    • Zambesi Dark Blue BH
    • Symulon Direct Black BH
    • Tertrodirect Black BH
    • Diazo Fast Black BH
    • 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
    • Brasilazol Black BH
    • C.I. Direct Blue 2 (VAN)
    • EE5HVP9RA8
    • Benzo Black Blue BH
    • Amanil Developed Black BHSW
    • Belamine Diazo Black BH
    • Chloramine Black BH
    • Union Fast Navy Blue DS
    • CI 22590
    • C.I. DIRECT BLUE 2 [HSDB]
    • Japanol Black BHK
    • Trisodium 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate
    • MDL： MFCD00059132
    • 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);;;/q;3*+1/p-3/b37-35+,38-36+;;;
    • InChI Key： FKVXIGHJGBQFIH-BOXWNSCSSA-K
    • SMILES： S(C1C(=C(C2=C(C=C(C=C2C=1)S(=O)(=O)[O-])N)O)/N=N/C1C=CC(=CC=1)C1C=CC(=CC=1)/N=N/C1=C(C2C=C(C=CC=2C=C1S(=O)(=O)[O-])N)O)(=O)(=O)[O-].[Na+].[Na+].[Na+]

Computed Properties

  • Exact Mass: 830.01200
  • Monoisotopic Mass: 830.012
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 4
  • Hydrogen Bond Acceptor Count: 17
  • Heavy Atom Count: 55
  • Rotatable Bond Count: 5
  • Complexity: 1590
  • Covalently-Bonded Unit Count: 4
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 2
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: 63
  • Topological Polar Surface Area: 339

Experimental Properties

  • Color/Form: Not determined
  • Boiling Point: °Cat760mmHg
  • Flash Point: °C
  • Refractive Index: 1.791
  • PSA: 338.68000
  • LogP: 10.18350
  • Solubility: Not determined
  • Color index: 22590

Direct Blue 2 (Technical Grade) Security Information

Direct Blue 2 (Technical Grade) Pricemore >>

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abcr
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Chloroazol Black BH; .
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Direct Blue 2 (Technical Grade) Related Literature

Additional information on Direct Blue 2 (Technical Grade)

Direct Blue 2 (Technical Grade): A Comprehensive Overview

Direct Blue 2 (Technical Grade), also known by its CAS number 2429-73-4, is a widely recognized dye used in various industrial and commercial applications. This compound belongs to the class of azo dyes, which are known for their vibrant colors and stability. The technical grade designation indicates that this product is tailored for industrial use, ensuring high performance and reliability in demanding environments.

The chemical structure of Direct Blue 2 is characterized by its azo linkage, which plays a crucial role in its color-forming properties. Recent studies have highlighted the importance of optimizing azo dye synthesis to enhance both color intensity and environmental compatibility. Researchers have explored the use of eco-friendly solvents and catalysts to minimize the environmental footprint of dye production, making Direct Blue 2 a sustainable choice for modern industries.

One of the key advantages of Direct Blue 2 (Technical Grade) is its excellent solubility in water, which makes it ideal for dyeing applications in textiles, plastics, and papers. Its ability to form strong bonds with fibers ensures long-lasting color retention, even under harsh washing conditions. This property has been validated by numerous studies focusing on dye-fiber interactions, further solidifying its reputation as a reliable dyeing agent.

In terms of performance, Direct Blue 2 exhibits superior lightfastness and resistance to fading, making it suitable for outdoor applications. Recent advancements in dye chemistry have led to the development of modified versions of this compound that offer enhanced resistance to UV degradation. These innovations are particularly beneficial for industries such as automotive textiles and outdoor furniture, where durability is paramount.

The application process for Direct Blue 2 (Technical Grade) is straightforward and compatible with a wide range of substrates. Its technical grade ensures consistent quality and performance across different batches, which is critical for large-scale manufacturing processes. Moreover, its compatibility with various dyeing techniques, including pad-dyeing and immersion dyeing, makes it a versatile choice for manufacturers.

From an environmental perspective, the production and use of Direct Blue 2 have been scrutinized to ensure compliance with global sustainability standards. Modern manufacturing practices focus on reducing water consumption and minimizing waste generation during the dyeing process. Additionally, researchers are exploring ways to recycle and reuse dye effluents, further contributing to the eco-friendliness of this compound.

In conclusion, Direct Blue 2 (Technical Grade) with CAS number 2429-73-4 stands out as a high-performance dye with a wide range of applications. Its superior color-forming properties, combined with advancements in sustainable manufacturing practices, make it an indispensable component in various industries. As research continues to uncover new possibilities for optimizing its performance and environmental impact, Direct Blue 2 remains at the forefront of innovative dye solutions.

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