Cas no 91-91-8 (Diazo Blue B)

Diazo Blue B is a diazo-based dye commonly used in textile and paper industries for its strong coloration properties. It exhibits excellent affinity for cellulose fibers, ensuring uniform dyeing with high color fastness. The product is valued for its bright blue hue and stability under various processing conditions, including exposure to light and washing. Its molecular structure allows for efficient bonding with substrates, reducing dye wastage. Diazo Blue B is also compatible with common industrial dyeing processes, making it a practical choice for large-scale applications. Proper handling is required due to its reactive nature, ensuring safety and optimal performance in production environments.
Diazo Blue B structure
Diazo Blue B structure
Product Name:Diazo Blue B
CAS No:91-91-8
MF:C14H12Cl2N4O2
MW:339.17668056488
CID:804112
PubChem ID:87569893
Update Time:2025-10-31

Diazo Blue B Chemical and Physical Properties

Names and Identifiers

    • [1,1'-Biphenyl]-4,4'-bis(diazonium),3,3'-dimethoxy-, chloride (1:2)
    • AZOIC DIAZO COMPONENT 48
    • Diazo Blue B
    • Tetrazotized-o-dianisidine chloride
    • CI 37235
    • Diazo Blue B Salt
    • Fast Blue B Salt
    • Naphthanil Diazo Blue B Salt
    • Blue BNS salt
    • Fast blue
    • [1,1'-Biphenyl]-4,4'-bis(diazonium), 3,3'-dimethoxy-, dichloride
    • 3,3'-dimethoxy[1,1'-biphenyl]-4,4'-bis(diazonium) dichloride
    • Diamidino compound 253/50
    • 3,3'-Dimethoxy(1,1'-biphenyl)-4,4'-bis(diazonium) dichloride
    • C14H12N4O2.2Cl
    • (1,1'-Biphenyl)-4,4'-bis(diazonium), 3,3'-dimethoxy-, dichloride
    • 6183AF
    • 4-(4-diazonio-3-methoxyphenyl)-2-meth
    • AKOS015903595
    • FAST BLUE SALT B (CI 37235)
    • 4,4'-Biphenylbis(diazonium), 3,3'-dimethoxy-, dichloride
    • D90630
    • 3,3'-Dimethoxy-[1,1'-biphenyl]-4,4'-bis(diazonium) chloride
    • NSC 36551
    • SCHEMBL5384716
    • 1185241-32-0
    • (1,1'-Biphenyl)-4,4'-bis(diazonium), 3,3'-dimethoxy-, chloride (1:2)
    • 14263-94-6
    • 4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;dichloride
    • EINECS 202-106-4
    • 91-91-8
    • DTXSID60920013
    • LHYQAEFVHIZFLR-UHFFFAOYSA-L
    • Fast blue B
    • MDL： MFCD00011886
    • Inchi： 1S/C14H12N4O2.2ClH/c1-19-13-7-9(3-5-11(13)17-15)10-4-6-12(18-16)14(8-10)20-2;;/h3-8H,1-2H3;2*1H/q+2;;/p-2
    • InChI Key： LHYQAEFVHIZFLR-UHFFFAOYSA-L
    • SMILES： [Cl-].[Cl-].O(C)C1=C(C=CC(=C1)C1C=CC(=C(C=1)OC)[N+]#N)[N+]#N

Computed Properties

  • Exact Mass: 338.0337310g/mol
  • Monoisotopic Mass: 338.0337310g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 6
  • Heavy Atom Count: 22
  • Rotatable Bond Count: 3
  • Complexity: 383
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 74.8
  • Surface Charge: 2
  • XLogP3: 4.8

Experimental Properties

  • Color/Form: Dark green powder.
  • Color index: 37235
  • Solubility: dissolve in water

Diazo Blue B Security Information

Diazo Blue B Pricemore >>

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Diazo Blue B Related Literature

Additional information on Diazo Blue B

Diazo Blue B: A Comprehensive Overview of Its Chemical Properties, Applications, and Research Developments

Diazo Blue B, with the chemical identifier CAS No. 91-91-8, is a widely utilized compound in the field of biomedical research. This compound, also known as Diazo Blue B, has garnered significant attention due to its unique chemical structure and versatile applications. Recent advancements in analytical chemistry and pharmaceutical science have further expanded its relevance in both industrial applications and biomedical innovations. This article provides an in-depth exploration of Diazo Blue B, its chemical characteristics, and its role in contemporary biomedical research.

Diazo Blue B is a diazo dye, which is a class of compounds characterized by the presence of a diazo group (N2). The CAS No. 91-91-8 compound is specifically known for its vibrant blue color and its ability to form stable complexes with various metal ions. This property makes it a valuable tool in analytical chemistry, where it is used for colorimetric detection and metal ion sensing. Recent studies have highlighted its potential in biomedical applications, including imaging techniques and drug delivery systems.

The chemical structure of Diazo Blue B is critical to understanding its behavior and applications. The compound consists of a benzene ring substituted with a diazo group and additional functional groups that enhance its solubility and reactivity. This structure allows it to interact with a wide range of molecules, making it suitable for use in bioconjugation and surface modification processes. Researchers have also explored its potential in nanotechnology, where its unique optical properties are being leveraged for nanoparticle labeling and <

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