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    Home > Chemicals Industry > Chemical Technology > Cinnamic acid

    Cinnamic acid

    • Last Update: 2022-06-05
    • Source: Internet
    • Author: User
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    Cinnamic acid

    Cinnamic acid

    [Synonyms] cinnamic acid, trans-Cirnamic acid

    【Structural formula】


    [Molecular formula and molecular weight] C 9 H 8 O 2 ; 148.


    [Source] The dry bark of Lauraceae Cinnamomum cassia Presl


    【Properties】White powder


    This product is soluble in methanol


    Melting point: 132~133℃


    【Purity Check】

    TLC

    1.


    Developing solvent hexane - ether - acetic acid (5: 5: 0.


    Check under UV lamp (254nm)

    2.


    Eluent petroleum ether - cyclohexane - ethyl - carboxylic acid (10:30:15:1)

    Check under UV lamp (254nm)

    High performance liquid chromatography

    Chromatographic column AgilentC 18 , 5um (4.


    The mobile phase methanol -0.


    Detection wavelength 285nm

    【Structural identification】273,216,205


    2596, 1684, 1631, 1450, 1344, 1288, 1227, 933, 766


    EI-MS m/z: 148[M] + , 131, 103, 91, 77, 51


    1 H-NMR (CD 3 OD) δ: 6.


    13 C-NMR (CD 3 OD) δ: 170.


    【Storage】Dry and airtight
    .

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