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    Home > Chemicals Industry > Chemical Technology > Melon seed gold saponins

    Melon seed gold saponins

    • Last Update: 2022-04-06
    • Source: Internet
    • Author: User
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    Melon seed gold saponins

    Polygalasaponin F

    【Structural formula】

    [Molecular formula and molecular weight] C 53 H 86 O 23 ; 1091.
    24

    [Source] The dry whole plant of Polygala japonica Houtt
    .

    【Properties】White powder
    .

    This product is soluble in methanol and water
    .

    Melting point: 232~233℃
    .

    【Purity Check】

    TLC

    1.
    Thin layer plate silica gel G

    Developing solvent n-butanol - acetic acid - water (4: 1: 5) upper solution

    Check the color development of 10% sulfuric acid ethanol solution, check under sunlight

    2.
    Thin layer plate silica gel G

    Developing solvent chloroform - methanol - water (75:35:4)

    Check the color development of 10% sulfuric acid ethanol solution, check under sunlight

    High performance liquid chromatography

    Chromatographic column Agilent C 18 , 5um (4.
    6mm×250mm)

    Mobile phase acetonitrile - water (28:72), 1.
    0ml / min

    Evaporative light scattering detection, drift tube temperature 105℃, carrier gas flow rate 2.
    8ml/min

    【Structural identification】203
    .

    3387, 2942, 1751, 1637, 1460, 1386, 1257, 1159, 1077, 1046, 893, 817
    .

    ESI-MS m/z: 1089 [MH] -
    .

    1 H-NMR (C 5 D 5 N) δ: 0.
    78 (3H, s, H-30), 0.
    81 (3H, s, H-29), 1.
    14 (3H, s, H-26), 1.
    19 (3H, s, H-27), 1.
    26 (3H, s, H-24), 1.
    52 (3H, s, H-25), 1.
    81 (3H, s, J=6.
    0Hz, H-6"), 5.
    43 (1H, brs, H-12), 5.
    13 (1H, d, J=7.
    8Hz, H-1'), 6.
    17 (1H, d, J=8.
    4Hz, H-1"), 6.
    48 (1H, d, brs, H -1"), 5.
    05(1H, overlapped, H-1")

    .

    13 C-NMR (C 5 D 5 N) δ: 44.
    3(C-1), 70.
    6(C-2), 83.
    1(C-3), 42.
    5(C-4), 47.
    9(C-5), 18.
    2( C-6), 32.
    4(C-7), 40.
    1(C-8), 48.
    6(C-9), 37.
    1(C-10), 24.
    1(C-11), 122.
    9(C-12), 144.
    2(C -13), 42.
    8(C-14), 28.
    6(C-15), 23.
    4(C-16), 47.
    2(C-17), 42.
    1(C-18), 46.
    4(C-19), 30.
    7(C- 20), 34.
    0(C-21), 33.
    2(C-22), 65.
    6(C-23), 15.
    1(C-24), 17.
    4(C-25), 17.
    6(C-26), 26.
    1(C-27) ), 176.
    5(C-28), 33.
    1(C-29), 23.
    8(C-30), 105.
    7(C-1'), 75.
    5(C-2'), 78.
    6(C-3'), 71.
    6(C -4'), 78.
    3(C-5'), 62.
    7(C-6'), 94.
    8(C-1"), 76.
    6(C-2"), 79.
    6(C-3"), 71.
    3(C-4 "), 79.
    0(C-5"), 62.
    1(C-6"), 101.
    5(C-1"'), 71.
    9(C-2"'), 72.
    7(C-3'"), 85.
    6(C- 4"'), 68.
    3(C-5'"), 18.
    7(C-6"'), 107.
    8(C-1""), 76.
    3(C-2""), 78.
    8(C-3""), 71.
    0(C-4""), 67.
    5(C-5"")

    .

    【Storage】Keep tightly closed
    .

     

     

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