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    Schaftoside

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

    Schaftoside

    【Structural formula】


    [Molecular formula and molecular weight] C 26 H 28 O 14 ; 564.


    [Source] The dry aerial part of the legume Desmodium styraci folium (Osb.


    【Properties】Yellow crystalline powder


    This product is soluble in methanol and ethanol , but hardly soluble in chloroform , ether , hexane , and carbon tetrachloride


    Melting point: 237~239℃


    【Purity Check】

    TLC

    1.


    Developing agent ethyl acetate-butanone-formic acid (5:1:1)

    After checking the color development of 1% aluminum trichloride ethanol solution, check under UV light (365nm)

    2.


    Developing solvent ethyl acetate - methanol - water (6:3:1)

    After checking the color development of 1% aluminum trichloride ethanol solution, check under ultraviolet light (254nm)

    High performance liquid chromatography

    Chromatographic column Agilent C 18 , 5um (4.


    Mobile phase methanol-water (32:68), 1ml/min

    Detection wavelength: 272nm

    【Structural identification】333,302(sh),272


    3375(-OH), 1653(C=O), 1620(C=C), 1581, 1088(C—O)


    FAB-MS m/z: 565[M+H] +


    1 H-NMR (DMSO) δ: 6.


    13 C-NMR (DMSO) δ: 164.


    【Storage】Dry and airtight


    Related Links : (1)-Eugenol-4-O-β-D-Aprilofuranosyl-(1→-2)-β-D-glucopyranoside

     

     

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