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    17557-76-5

    Catalog No. EBD248081

    CAS 17557-76-5

    Name 4,4'-diamino-diphenic acid

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    Basic Information

    Synonyms: 4,4'-diamino-diphenicacid 4,4'-Diamino-diphensaeure 4.4'-Diamino-diphenyl-dicarbonsaeure-(2.2') Benzidin-dicarbonsaeure-(2.2') 4,4'-diamino-2,2'-diphenicacid 2,2'-dicarboxybenzidine 4,4'-Diaminobiphenyl-2,2'-Dicarboxylicacid 4,4'-Diamino-[1,1'-biphenyl]-2,2'-dicarboxylicacid

    Molecular Formula: C14H12N2O4

    Molecular Weight: 272.26

    Categories: Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > OLED and Organic Optoelectronic Precursors Materials Chemistry > Polymers and Macromolecular Materials > Polyamide and Nylon Precursors

    Product Description:
    4,4'-Diaminobiphenyl-2,2'-dicarboxylic acid is a rigid, aromatic diamine-dicarboxylic acid compound. Its structure features two amino groups and two carboxylic acid groups on a biphenyl backbone, making it a versatile bifunctional monomer. This compound is primarily used as a key precursor in the synthesis of high-performance polymers, particularly polyimides and polyamides. The rigid biphenyl core contributes to the thermal stability and mechanical strength of the resulting polymers. These materials are essential in advanced applications such as flexible printed circuit boards, high-temperature insulating films, and gas separation membranes. Furthermore, its conjugated structure and functional groups make it a candidate building block for organic semiconductors and light-emitting materials in OLED research. As a bifunctional monomer, it enables precise control over polymer chain structure and properties. Handling requires standard precautions for aromatic amines and carboxylic acids, including the use of personal protective equipment to avoid inhalation or skin contact.
    Physical Properties

    Boiling Point: 515.1°Cat760mmHg

    Flash Point: 265.3°C

    Density: 1.476g/cm3

    mg g kg ml l t