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    Home > Chemicals Industry > Chemical Technology > Ethyl Caffeate

    Ethyl Caffeate

    • Last Update: 2022-05-29
    • Source: Internet
    • Author: User
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    Ethyl Caffeate

    Caffeoyl acetate

    【Structural formula】


    [Molecular formula and molecular weight] C 11 H 12 O 4 ; 208.


    [Source] Reagents


    [Properties] khaki powder


    This product is easily soluble in methanol , ethanol and acetone


    Melting point: 145.


    【Purity Check】

    TLC

    1.


    Developing solvent chloroform - methanol - formic acid (9:1: 0.


    Check under UV lamp (254nm)

    2.


    Developing agent toluene- chloroform -acetone-formic acid (4:1:2:0.


    Check under UV lamp (254nm)

    High performance liquid chromatography

    Chromatographic column C 18 , 5um (4.


    Mobile phase acetonitrile-water gradient elution, 1ml/min

    Detection wavelength 325nm

    【Structural identification】218,244,328


    3437, 3178, 1660, 1608, 1533, 1444, 1404, 1306, 1282, 1219, 974, 814


    FAB-MS m/z: 417[2M+H] + , 231[M+Na] + , 209[M+H] +


    1 H-NMR (DMSO) δ: 7.


    13 C-NMR (DMSO) δ: 125.


    【Storage】Dry and airtight
    .

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