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    Home > Chemicals Industry > Chemical Technology > Coprininoside Ⅱ

    Coprininoside Ⅱ

    • Last Update: 2022-05-30
    • Source: Internet
    • Author: User
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    Coprininoside Ⅱ

    PicrosideⅡ

    [Molecular formula and molecular weight] C 23 H 28 O 13 ; 512.


    [Source] Scrophulariaceae plant Picrorhiza scrophulariiflora .


    【Structural formula】


    【Properties】White crystalline powder


    This product is soluble in methanol


    Melting point: 184~185℃


    【Purity Check】

    TLC

    1.


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


    Check under UV lamp (254nm)

    2.


    Developing solvent ethyl acetate - formic acid - water (8:1: 1)

    Check the color development of 10% sulfuric acid ethanol solution, check under sunlight after heating at 105℃

    High performance liquid chromatography

    Chromatographic column C 18 , 5um (4.


    Mobile phase methanol-water- phosphoric acid (35:65:0.


    Detection wavelength 275nm

    【Structural identification】294,263,220


    3406, 2933, 1709, 1655, 1597, 1516, 1288, 1070, 1016


    ESI-MS m/z: 513 [M+H] +


    1 H-NMR (CD 3 OD) δ: 5.


    13 C-NMR (CD 3 OD) δ: 95.


    【Storage】Dry and airtight
    .

     

     

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