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4,4'-Diaminostilbene-2,2'-disulfonic acid

BGC Id:580156598784
CAS No:81-11-8
Synonyms:dasda ; dasd ; dsd acid ; das ; nci-c60162 ; flavonicacid ; akos bbs-00004717 ; tinopalbhs ; amsomicacid ; amsonic acid
Molecular Formula:C14H14N2O6S2
Molecular Weight:370.4
EINECS:201-325-2
Structural Formula

Verified providers in 2025

The following 10 notable providers have been checked and can be recommended.
Chemical-Suppliers
Unilong Industry
  • pKa : -1.58±0.50(Predicted)
  • Melting point : 300 °C
  • Density : 1.4732 (rough estimate)
  • Vapor pressure : 1.3hPa at 25℃
  • SOLUBLE : <0.1 g/100 mL at 23 ºC
  • Refractivity : 1.6510 (estimate)
  • Chemical-Suppliers
    Xiamen Hisunny Chemical
    Molecular Formula : C14H14N2O6S2
    Chemical-Suppliers
    Zehao Industry
    Assay:99.0% min

    Chemical-Suppliers
    BLD Pharmatech
    Smile code: NC1=CC(=C(C=CC2=CC=C(N)C=C2S(O)(=O)=O)C=C1)S(O)(=O)=O MDL Number: MFCD00024946 Purity : 96% Available in stock: 73 g
    Chemical-Suppliers
    Leap Chem
    Molecular Formula: C14H14N2O6S2 Molecular Weight: 370.4 Hazard Symbols: C,Xn UN Number: UN 2583 HS Code: 29215900

    The last intensive check and update was carried out on 2025/10/30.

    Identify

    Synonyms:
    dasda ; dasd ; dsd acid ; das ; nci-c60162 ; flavonicacid ; akos bbs-00004717 ; tinopalbhs ; amsomicacid ; amsonic acid
    CAS:
    81-11-8
    EINECS:
    201-325-2
    Molecular Formula:
    C14H14N2O6S2
    MDL:
    MFCD00024946
    SMILES:
    CC1(COC(=O)C1O)C

    Properties

    Molecular Weight:
    370.4 g·mol−1
    Density:
    1.66 g/cm3
    Melting point:
    300 °C
    Boiling point:
    ~650.95 °C (Predicted)
    Solubility:
    Soluble in alkaline water, diethyl ether, methanol, n-octanol, and hot water (Very slightly soluble). Insoluble in cold water.
    download Download Molfile for :
    4,4’-Diaminostilbene-2,2’-disulfonic Acid, 95+%

    Suppliers

    Unilong Industry Co.,Ltd

    Company type: Bulk chemical producer
    Country: P.R.China   Phone: +86-15668417750   Telefax: +86-531-55690079

    Simagchem Corporation

    Company type: Bulk chemical producer
    Country: P.R.China
    Phone: +86 592 2680 277
    Telefax: +86 592 2680 237
    Your partner in China for chemicals business. Expertize in supplies and sources of fine, specialty, pharmaceutical chemicals and intermediates. WE offer high quality products and JIT services with instant market intelligence in China, custom synthesis in our 3 production sites, famous principals as Brenntag, Univar,S inopec, Grace, Petrobras, DKSH, Formitex, Evonik, Merck, TCI, Sanofi, Chemo with creditable reputation and business cooperation. Simagchem Corporation also offers 2-Acetyl-6-methoxypyridine.

    Xiamen Hisunny Chemical Co., Ltd.

    Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We provide N4,N4,N4',N4'-tetra-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine as well. We develop producing and selling high quality intermediates, Fine chemicals and Specialty Chemicals. We could give you: 1.Best quality in your requirement 2.Competitive price in China market 3.mature Technical support 4.Professional logistic support All we want is win-win business. Send yr. inquiries, you will get it!
    Company type: Leading producer
    Country: P.R.China
    Phone: +86-592-3327115
    Telefax: +86-592-5823596

    Zehao Industry Co., Ltd.

    The Shepherd Chemical Company was founded in Norwood, Ohio, in 1916. We are a fourth-generation company and a custom manufacturer of Inorganic Metal Salts and Organic Metal Compounds to the global marketplace. 2-Bromo-4-chloropyridine is also served by Zehao Industry Co., Ltd.. Our long-standing success is built upon technical expertise, supplier reliability, and customer relationships. Our goal is to supply the marketplace with high quality metal compounds as standard or customized products. Our capabilities are comprised of our manufacturi ...
    Country: P.R.China   Phone: +86-531-88909322   Telefax: +86-531-88909322

    Dayang Chem (Hangzhou) Co.,Ltd.

    Company type: Leading producer
    Country: P.R.China
    Phone: +86-571-88938639
    Telefax: +86-571-8893-8652
    Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We provide 2-Chloro-4-fluoro-3-methylaniline as well. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...

    Nantong Xindao Biotech Ltd

    XINDAO is a world leading biochemical company formed by a professional team.The company specializes in the production, development and sales of animal health, crop science, nutrition and health care, skin care raw materials, fine chemicals and other products. 2-butyl-4-chloro-4,5-dihydro-5-hydroxymethyl-1-[2'-(2-triphenylmethyl-1,2,3,4-2H-tetrazol-5-yl)-1,1'-biphenyl-4-methyl]-1H-imidazole will be also provided by us. At present, more than 300 kinds of products can be mass produced, which are widely used in chemical industry, health, agriculture, animal husbandry, biochemical research and other high-end fields. XINDAO pays attention ...
    Company type: Leading producer
    Country: P.R.China
    Phone: +86 19033786557

    Xiamen Equation Chemical Co.,Ltd

    Company type: Bulk chemical producer
    Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are supplier of 1-Boc-Pyrrolidine-3-carboxylic acid. We are committed to provide experienced high quality product and JIT performance to benefit our customers.
    Country: P.R.China   Phone: +86 592 6515854   Telefax: +86 592 6515854

    BLD Pharmatech Ltd

    Company type: Supplier
    Country: P.R.China
    Phone: +86-21-61629022
    Telefax: +86-21-50201702
    Founded in 2014 and headquartered in Shanghai, China, BLD Pharmatech Ltd. with more than 600,000 items, scale up manufacture and custom services is a leading manufacturer and supplier of diversified research chemicals in the industry. We provide 5-Chloro-3-(4-methanesulfonylphenyl)-2-(6-methylpyridin-3-yl)pyridine as well. Our considerable stock of a wide range of laboratory chemicals, from heterocycles, boron acids, amino acids, metal catalysts to chiral compounds, is ready for worldwide shipping. The ISO certifications and DUNS registration are our testimonie ...

    Leap Chem Co., Ltd

    LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
    Company type: Bulk and laboratory supplier
    Country: P.R.China
    Phone: +852-30606658

    BuGuCh & Partners

    Company type: Producer
    We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...
    Country: Germany  

    Safety Information

    Hazard Classes:
    Risk Codes:
    34-22 (R)
    Safety Codes:
    24/25-45-36/37/39-26-22 (S)
    RID / ADR:
    UN 2583
    RTECS:
    WJ6603000
    Storage temperature:
    -20 °C Freezer

    What other providers are available for CAS 81-11-8?

    In addition to the providers presented here for 4,4'-Diaminostilbene-2,2'-disulfonic acid with the CAS number 81-11-8, there are other 13 providers with slightly different product names available for this CAS number.

    BuGuCh & Partners
    Sancai Industry Co.,Ltd. | Lori Industry Co., Ltd | BuGuCh & Partners
    +2 additional providers that we know from the past
    +2 additional providers that we know from the past
    BuGuCh & Partners +3 additional providers that we know from the past
    +1 additional providers that we know from the past




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