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    Viscidulin III
    Viscidulin III
    Information
    CAS No. 92519-91-0 Price $413 / 5mg
    Catalog No.CFN97488Purity> 95%
    Molecular Weight346.3 Type of CompoundFlavonoids
    FormulaC17H14O8Physical DescriptionYellow powder
    Download Manual    COA    MSDS    SDFSimilar structuralComparison (Web)
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    Viscidulin III Description
    Source: The roots of Scutellaria viscidula Bge.
    Biological Activity or Inhibitors: 1. Viscidulin III (17.4 microM), wogonin (17.4 microM) and luteolin (18.4 microM) were more effective than baicalein (23.0 microM) which reportedly inhibits the proliferation of some cancer cell lines.
    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.
    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 2.8877 mL 14.4383 mL 28.8767 mL 57.7534 mL 72.1917 mL
    5 mM 0.5775 mL 2.8877 mL 5.7753 mL 11.5507 mL 14.4383 mL
    10 mM 0.2888 mL 1.4438 mL 2.8877 mL 5.7753 mL 7.2192 mL
    50 mM 0.0578 mL 0.2888 mL 0.5775 mL 1.1551 mL 1.4438 mL
    100 mM 0.0289 mL 0.1444 mL 0.2888 mL 0.5775 mL 0.7219 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.
    Viscidulin III References Information
    Citation [1]

    Beijing Da Xue Xue Bao. 2009 Oct 18;41(5):578-84.

    Flavonoids from Scutellaria baicalensis and their bioactivities.[Pubmed: 19829679]
    Nine compounds were isolated and identified as baicalein (1), wogonin (2), oroxylin A (3), 5, 7, 2', 6'-tetrahydroxyflavone (4), Viscidulin III (5), baicalin (6), wogonoside (7), oroxylin A-7-O-beta-D-glucuronide (8) and chrysin-6-C-alpha-L-arabinopyranosyl-8-C-beta-D-glucopyranoside (9). CONCLUSION: Baicalein had good anti-bacteria activity, and some compounds showed inhibiting activity against IL-1beta converting enzyme. The 13C NMR data of compounds 9 were assigned correctly by 2D nuclear magnetic resonance (NMR).
    Citation [2]

    Planta Med. 1997 Dec;63(6):536-9.

    Studies on the constituents of roots of Scutellaria planipes.[Pubmed: 17252377]
    From the roots of Scutellaria planipes (L.), three new flavonoids, 5,7,3',6'-tetrahydroxy-6,8,2'-trimethoxyflavone, (2 R,3 R)-3,5,7,2',5'-pentahydroxyflavanone and 7,2'-dihydroxy-5-methoxyflavone were isolated, together with ten known flavonoids, skullcapflavone I, wogonin, baicalein, norwogonin, Viscidulin III, 5,7,2',6'-tetrahydroxy-flavone, 3,5,7,2',6'-pentahydroxyflavone, wogonin 7- O-beta- D-glucuronide, baicalin, baicalein 7- O-beta- D-glucopyranoside, and three phenethyl alcohol glycosides, acteoside, martynoside, and jionoside D. The structures were elucidated by spectroscopic methods.
    Citation [3]

    J Ethnopharmacol. 2004 Mar;91(1):65-8.

    Cytotoxic activities of flavonoids from two Scutellaria plants in Chinese medicine.[Pubmed: 15036470]
    The effects of 17 flavonoids, isolated from two flavonoid-rich Scutellaria species (Scutellaria baicalensis Georgi and Scutellaria rivularis Wall) used in traditional Chinese medicine, on HL-60 cells were assessed by WST-8. Ten of the flavonoids inhibited the proliferation of HL-60, as shown by IC50 values used as indexes of the inhibition. 2',3',5,7-tetrahydroxy flavone (IC50=9.5 microM), apigenin (15.0 microM), Viscidulin III (17.4 microM), wogonin (17.4 microM) and luteolin (18.4 microM) were more effective than baicalein (23.0 microM) which reportedly inhibits the proliferation of some cancer cell lines. Others were less effective, and oroxylin A stimulated the proliferation. Scutellaria rivularis, used for the treatment of tumors in the clinic, contained flavonoids that were more inhibitive than those in Scutellaria baicalensis. These results are demonstrative of some reasons for the use of Scutellaria rivularis as a crude antitumor drug.