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    Home > Chemicals Industry > Chemical Technology > Salicylic acid

    Salicylic acid

    • Last Update: 2022-06-04
    • Source: Internet
    • Author: User
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    Salicylic acid

    Salicylicacid

    【Molecular formula and molecular weight】C 7 H 6 O 3 ;138.


    【Structural formula】


    【Source】Organic Synthesis

    【Properties】White crystalline powder

    This product is soluble in water, easily soluble in ethanol , ether and chloroform

    Melting point: 157~159℃

    【Purity Check】

    TLC

    1.


    Developing agent cyclohexane- ethyl acetate -formic acid (10:1:1)

    After checking the color development of 1% ferric chloride ethanol solution, check under sunlight

    2.


    Developing agent benzene-acetic acid-methanol (30:1:3)

    After checking the color development of 1% ferric chloride ethanol solution, check under sunlight

    High performance liquid chromatography

    Chromatographic column ZORBAX Eclipse XDB-C 18 column, 5um (4.


    The mobile phase methanol - water (78:22) [containing cetyl trimethyl ammonium bromide (HDTA) 0.


    Detection wavelength 280nm

    [Structural identification] 297, 232, 209


    3250 (-OH), 2550, 1670 (-C=O), 1610, 1490 (aromatic ring), 1450, 1300, 1250, 1210, 1160, 1030, 890, 760


    EI-MS m/z: 138[M] +


    1 H-NMR (CDCl 3 ) δ: 6.


    13 C-NMR(CDCl 3 ) δ: 111.


    【Storage】Dry and airtight


    Related links: 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside

     

     

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