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    Natural Products
    6-Hydroxykaempferol
    6-Hydroxykaempferol
    Information
    CAS No. 4324-55-4 Price
    Catalog No.CFN92370Purity>=98%
    Molecular Weight302.2Type of CompoundFlavonoids
    FormulaC15H10O7Physical DescriptionYellow powder
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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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    6-Hydroxykaempferol

    6-Hydroxykaempferol
    Product Name 6-Hydroxykaempferol
    CAS No.: 4324-55-4
    Catalog No.: CFN92370
    Molecular Formula: C15H10O7
    Molecular Weight: 302.2 g/mol
    Purity: >=98%
    Type of Compound: Flavonoids
    Physical Desc.: Yellow powder
    Targets: Tyrosinase
    Source: The herbs of Inula japonica Thunb.
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
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  • Related Screening Libraries
    Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
    10 mM * 1 mL in DMSO / Inquiry / In-stock
    Related Libraries
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  • Biological Activity
    Description: 6-Hydroxykaempferol is a competitive inhibitor of tyrosinase compared to L-DOPA, it shows also high antioxidant activities.
    Targets: Tyrosinase
    In vitro:
    Molecules, 2007, 12(1):86-97.
    Inhibitory effects of 5,6,7-trihydroxyflavones on tyrosinase.[Pubmed: 17693955]

    METHODS AND RESULTS:
    Baicalein (1), 6-Hydroxyapigenin (6), 6-hydroxygalangin (13) and 6-hydroxy-kaempferol (14), which are naturally occurring flavonoids from a set of 14 hydroxy-flavones tested, exhibited high inhibitory effects on tyrosinase with respect to L-DOPA, while each of the 5,6,7-trihydroxyflavones 1, 6, 13 or 14 acted as a cofactor to monophenolase. Moreover, 6-Hydroxykaempferol (14) showed the highest activity and was a competitive inhibitor of tyrosinase compared to L-DOPA. 5,6,7-Trihydroxyflavones 1, 6, 13 or 14 showed also high antioxidant activities.
    CONCLUSIONS:
    Hence, we conclude that the 5,6,7-trihydroxy-flavones are useful as good depigmentation agents with inhibitory effects in addition to their antioxidant properties.
    6-Hydroxykaempferol Description
    Source: The herbs of Inula japonica Thunb.
    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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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.3091 mL 16.5453 mL 33.0907 mL 66.1813 mL 82.7267 mL
    5 mM 0.6618 mL 3.3091 mL 6.6181 mL 13.2363 mL 16.5453 mL
    10 mM 0.3309 mL 1.6545 mL 3.3091 mL 6.6181 mL 8.2727 mL
    50 mM 0.0662 mL 0.3309 mL 0.6618 mL 1.3236 mL 1.6545 mL
    100 mM 0.0331 mL 0.1655 mL 0.3309 mL 0.6618 mL 0.8273 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:
    Phytochemistry.1992;31(11):4001–4004.
    6-hydroxykaempferol and its glycosides from Carthamus tinctorius petals.[Reference: WebLink]

    METHODS AND RESULTS:
    From the dried petals of Carthamus tinctorius, five flavonoids, 6-Hydroxykaempferol, 6-Hydroxykaempferol 3-glucoside, 6-Hydroxykaempferol 3,6-diglucoside, 6-Hydroxykaempferol 3,6,7-triglucoside and 6-Hydroxykaempferol 3-rutinoside-6-glucoside, were isolated along with 13 known compounds, and their structures determined by spectroscopic means including 2D NMR.
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