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    Tanshinone

    • Last Update: 2022-06-02
    • Source: Internet
    • Author: User
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    Tanshinone

    Tanshinone I

    【Structural formula】


    [Molecular formula and molecular weight] C 18 H 12 O 3 ; 276.


    [Source] The dried roots and rhizomes of Salvia miltiorrhiza Bge


    【Properties】Brown-red crystals


    This product is easily soluble in chloroform , soluble in organic solvents such as acetone , and slightly soluble in water


    Melting point: 233~234℃

    【Purity Check】

    TLC

    1.


    Developing solvent toluene - ethyl acetate (19)

    Check the daylight view

    2.


    Developing agent chloroform- ethyl acetate - toluene - formic acid (20:16:123)

    Check the daylight view

    High performance liquid chromatography

    Column Phenmenex Gemini C 18 , 5um(4.


    The mobile phase methanol - water (75:25), 1ml / min

    Detection wavelength 210nm, 245nm, 323nm

    Differential calorimetry

    Start temperature 50℃, end temperature 300℃, heating rate 5℃/min

    [Structural identification] 417, 323, 266, 243


    1688, 1660, 1593, 1430, 1190, 1166, 917, 834, 790, 760, 707


    EI-MS m/z: 276[M] + , 248[M-CO] + , 178, 165


    1 H-NMR (CDCl 3 ) δ: 2.


    13 C-NMR (CDCl 3 ) δ: 118.


    【Storage】Dry and airtight


    Related link: Ginkgolide

     

     

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