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    Qianhucoumarin E
    Qianhucoumarin E
    Information
    CAS No. 156041-02-0 Price
    Catalog No.CFN92597Purity>=98%
    Molecular Weight342.4Type of CompoundCoumarins
    FormulaC19H18O6Physical DescriptionCryst.
    Download     COA    MSDS    SDFSimilar structuralComparison (Web)  (SDF)
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    According to end customer requirements, ChemFaces provide solvent format. This solvent format of product intended use: Signaling Inhibitors, Biological activities or Pharmacological activities.
    Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry
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    Qianhucoumarin E

    Qianhucoumarin E
    Product Name Qianhucoumarin E
    CAS No.: 156041-02-0
    Catalog No.: CFN92597
    Molecular Formula: C19H18O6
    Molecular Weight: 342.4 g/mol
    Purity: >=98%
    Type of Compound: Coumarins
    Physical Desc.: Cryst.
    Source: The herbs of Peucedanum harry-smithii var. subglabrum
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    Price:
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    Qianhucoumarin E Description
    Source: The herbs of Peucedanum harry-smithii var. subglabrum
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    Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

    After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 2.9206 mL 14.6028 mL 29.2056 mL 58.4112 mL 73.014 mL
    5 mM 0.5841 mL 2.9206 mL 5.8411 mL 11.6822 mL 14.6028 mL
    10 mM 0.2921 mL 1.4603 mL 2.9206 mL 5.8411 mL 7.3014 mL
    50 mM 0.0584 mL 0.2921 mL 0.5841 mL 1.1682 mL 1.4603 mL
    100 mM 0.0292 mL 0.146 mL 0.2921 mL 0.5841 mL 0.7301 mL
    * Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
    Protocol
    Structure Identification:
    Zhongguo Zhong Yao Za Zhi. 2009 May;34(9):1121-3.
    Simultaneous determination of three coumarin constituents in roots of Peucedanum praeruptorum by RP-HPLC.[Pubmed: 19685749]
    To develop a reserved-phase HPLC method for the determination of praeruptorin A, praeruptorin B, Qianhucoumarin E in roots of Peucedanum praeruptorum.
    METHODS AND RESULTS:
    Agilent TC-C18 column (4.6 mm x 250 mm, 5 microm) was used at 30 degrees C with the mobile phase of methanol-water (75:25). The flow rate was set at 0.8 mL x min(-1). The detection wavelength was 321 nm. The linear response ranged from 3.20-28.80 microg for +/- praeruptorin A (r = 0.9999, n = 5), 1.60-14.40 g for praeruptorin B (r = 0.9995, n = 5) and 1.64-14.76 g for Qianhucoumarin E (r = 0.9994, n = 5), respectively. Recoveries were 98.92% with RSD 1.6% for praeruptorin A, 99.66% with RSD 1.5% for praeruptorin B and 99.72% with RSD 1.4% for Qianhucoumarin E.
    CONCLUSIONS:
    The method is quick, simple and repeatable for determination of three coumarin constituents in root of P. praeruptorum.
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