|Description:||1. 5,7,3',5'-Tetrahydroxy-6,4'-dimethoxyflavone exhibits cytotoxic activity against P-388 cell lines, it can inhibit DNA topoisomerase IIα activity, which may be responsible for the observed cytotoxicity.|
2. 5,7,3',5'-tetrahydroxy-6,4'-dimethoxyflavone exhibits anti-HIV-1 activity in the anti-syncytium assay using (∆Tat/rev)MC99 virus and 1A2 cell line system, it shows considerably activity against HIV-1 reverse transcriptase.
|Targets:||HIV | Topoisomerase|
|Source:||The aerial parts of Artemisia salsoloides|
|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.
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|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.|
|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|
Fitoterapia. 2012 Mar;83(2):368-72.
|DNA topoisomerase IIα inhibitory and anti-HIV-1 flavones from leaves and twigs of Gardenia carinata.[Pubmed: 22155186 ]|
|Four new flavones, 5,2'-dihydroxy-7,3',4',5'-tetramethoxyflavone (1), 5,2',5'-trihydroxy-7,3',4'-trimethoxyflavone (2), 5,7,2',5'-tetrahydroxy-6,3',4'-trimethoxyflavone (3) and 5,2',5'-trihydroxy-6,7,3',4'-tetramethoxyflavone (4), along with the known 5,3'-dihydroxy-6,7,4',5'-tetramethoxyflavone (5), 5,7,3',5'-tetrahydroxy-6,4'-dimethoxyflavone (3',5,5',7-Tetrahydroxy-4',6-dimethoxyflavone,6), syringaldehyde, vanillic acid and scopoletin were isolated from the leaves and twigs of Gardenia carinata (Rubiaceae). Their structures were determined by spectroscopic methods. Flavone 2 exhibited cytotoxic activity against P-388 and MCF-7 cell lines, while 3, 5 and 6 were active only in P-388 cell line. All active compounds were found to inhibit DNA topoisomerase IIα activity, which may be responsible for the observed cytotoxicity. Flavones 1-3, 5 and 6 also exhibited anti-HIV-1 activity in the anti-syncytium assay using (∆Tat/rev)MC99 virus and 1A2 cell line system; 2 was most potent. Only flavones 1 and 6 showed considerably activity against HIV-1 reverse transcriptase.|