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  • 4,4'-Diaminostilbene-2,2'-disulfonic Acid

  • 4,4'-Diaminostilbene-2,2'-disulfonic Acid

    Catalog Number
    ACM81118-1
    CAS Number
    81-11-8
    Product Name
    4,4'-Diaminostilbene-2,2'-disulfonic Acid
    Structure
    Category
    Monomers; Polymers
    Description
    4,4'-diamino-2,2'-stilbenedisulfonic acid appears as odorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension). (NTP, 1992);DryPowder
    IUPAC Name
    5-amino-2-[(E)-2-(4-amino-2-sulfophenyl)ethenyl]benzenesulfonic acid
    Molecular Weight
    370.4g/mol
    Molecular Formula
    C14H14N2O6S2
    Canonical SMILES
    C1=CC(=C(C=C1N)S(=O)(=O)O)C=CC2=C(C=C(C=C2)N)S(=O)(=O)O
    InChI
    InChI=1S/C14H14N2O6S2/c15-11-5-3-9(13(7-11)23(17,18)19)1-2-10-4-6-12(16)8-14(10)24(20,21)22/h1-8H,15-16H2,(H,17,18,19)(H,20,21,22)/b2-1+
    InChI Key
    REJHVSOVQBJEBF-OWOJBTEDSA-N
    Melting Point
    greater than 617 °F (NTP, 1992)
    Solubility
    less than 1 mg/mL at 73° F (NTP, 1992);VERY SLIGHTLY SOL IN WATER;SOL IN ALCOHOL & ETHER
    Color/Form
    YELLOW NEEDLES
    Complexity
    606
    Covalently-Bonded Unit Count
    1
    EC Number
    201-325-2;246-937-0
    Exact Mass
    370.029329g/mol
    Formal Charge
    0
    Heavy Atom Count
    24
    MeSH Entry Terms
    4,4'-diacetamido-2,2'-stilbene disulfonate;4,4-diaminostilbene-2,2'-disulfonic acid;amsonic acid;amsonic acid, disodium salt;amsonic acid, sodium salt;DADS;DAS;DASD;DASSA;DSD acid
    Monoisotopic Mass
    370.029329g/mol
    NSC Number
    163
    Other Experimental
    FORMS SPARINGLY WATER SOL CRYSTALLINE SALTS WITH MANY BISQUATERNARY AMMONIUM BASES
    Rotatable Bond Count
    4
    UNII
    H68088WVJL
    XLogP3
    0.3
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