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     Name: Cilostazol

    Chemical name: 6-(4-(1-cyclohexyl-1H-tetrazole-5-yl)butoxy)-3,4-dihydro-2(1H)-quinolinone
    CAS No. : 73963-72-1
    Molecular formula: C20H27N5O2
    Molecular weight: 369. 46
    Specification:

    Appearance

    White or off-white crystalline powder

    Assay by HPLC

    98.0~102.0%

    Impurity(HPLC)

    Dimer

    Other impurity

    Total impurity

     

    ≤0.1%

    ≤0.1%

    ≤0.3%

    Loss on drying

    ≤0.5%

    Residual on Ignition

    ≤0.2%

    Heavy metal

    ≤0.002%

    Solvents

    Methanol

    Chloroform

     

    ≤3000ppm

    ≤60ppm

    7. Ultimate analysis: C 65. 02%,H 7. 37%,N 18. 96%,O 8. 66% 7 

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