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    5-Hydroxy-7-acetoxyflavone
    Information
    CAS No. 6674-40-4 Price
    Catalog No.CFN97139Purity>=98%
    Molecular Weight296.3 Type of CompoundFlavonoids
    FormulaC17H12O5Physical DescriptionYellow powder
    Download     COA    MSDSSimilar structuralComparison (Web)
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    Biological Activity
    Description: 5-Hydroxy-7-acetoxyflavone is a natural product from Oroxylum indicum.
    5-Hydroxy-7-acetoxyflavone Description
    Source: The barkS of Oroxylum indicum
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    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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    Cell. 2018 Jan 11;172(1-2):249-261.e12.
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    Phytomedicine. 2018 Feb 1;40:37-47.
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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.375 mL 16.8748 mL 33.7496 mL 67.4992 mL 84.3739 mL
    5 mM 0.675 mL 3.375 mL 6.7499 mL 13.4998 mL 16.8748 mL
    10 mM 0.3375 mL 1.6875 mL 3.375 mL 6.7499 mL 8.4374 mL
    50 mM 0.0675 mL 0.3375 mL 0.675 mL 1.35 mL 1.6875 mL
    100 mM 0.0337 mL 0.1687 mL 0.3375 mL 0.675 mL 0.8437 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:
    Chinese Traditional & Herbal Drugs , 2016 ,47(12):2044-2052.
    Analysis on chemical constituents in Bupleuri Radix by HPLC-Q-TOF-MS[Reference: WebLink]
    To investigate the chemical constituents in extract of Bupleuri Radix using HPLC-Q-TOF-MS.
    METHODS AND RESULTS:
    The HPLC separation achieved on Agilent 1200 HPLC Diamonsil Ⅱ C_(18) column(250 mm × 4.6 mm,5μm) was used with a mobile phase of0.05%H_2O-formic acid(A) and acetonitrile(B),the flow rate was 1.0 mL/min,the column temperature was 35℃,and the detection wavelength was 200-600 nm.Positive and negative ions MS information and element analysis,via comparing MS data with those of the standard compounds and coupled with the related literature were used to analyze the main chemical constituents of BupleuriRadix. Twenty-one chemical constituents were identified,including three phenolic acid,four flavonoids,and fourteen triterpenoid saponins,and isochlorogenic acid A(5),isochlorogenic acid B(6),7,3'-di-O-methylquercetin(8),and 5-Hydroxy-7-acetoxyflavone(24) were separated from Bupleuri Radix for the first time.
    CONCLUSIONS:
    It is used to quickly analyze the chemical constituents from Bupleuri Radix by establishing a rapid accurate evaluation method using HPLC-Q-TOF-MS,which could provide the references for the application development.