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    Home > Chemicals Industry > Chemical Technology > Tongguanosinoside H

    Tongguanosinoside H

    • Last Update: 2022-04-07
    • Source: Internet
    • Author: User
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    Tongguanosinoside H

    Tenacissoside H

    【Structural formula】

    【Molecular formula and molecular weight】C 42 H 66 O 14 ;794.


    [Source] The dry cane of Marsdenia tenacissima (Roxb.


    【Properties】White powder


    This product is soluble in methanol


    Melting point: 199~203℃


    【Purity Check】

    TLC

    1.


    Developing solvent chloroform - acetone - methanol (20:1:1)

    After checking the color development of 10% sulfuric acid ethanol solution, check under sunlight and ultraviolet light (365nm)

    2.


    Developing solvent chloroform - ethyl acetate - formic acid (3:3:0.


    After checking the color development of 10% sulfuric acid ethanol solution, check under sunlight and ultraviolet light (365nm)

    High performance liquid chromatography

    Phenomenex C 18 Column , 5um (4.


    Mobile phase acetonitrile-water (56:44), 1ml/min

    ELSD 2000ES evaporative light scattering detection, nitrogen flow rate 2.


    【Structural identification】227,202


    3491 (OH), 2970, 2935, 2878, 1735 (-C=O), 1702 (-C=O), 1452, 1365, 1249, 1161, 1084, 1032, 982, 917


    ESI-MS m/z: 817 [M+Na] +


    1 H-NMR (C 5 D 5 N) δ: 0.


    13 C-NMR (C 5 D 5 N) δ: 37.


    【Storage】Dry and airtight


    Related link: Tungguanosinoside H

     

     

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