7-Hydroxy-3-(4-hydroxybenzylidene)chroman-4-one
7-Hydroxy-3-(4'-hydroxybenzylidene)-chroman-4-one may have anti-inflammatory activity.
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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
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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Chinese Journal of Experimental Traditional Medical Formulae, 2014 , 20 (20) :110-113.
Chemical Constituents of Anti-in Flammatory Fraction of Caesalpinia decapetala[Reference:
WebLink]
To study the chemical constituents of the anti-inflammatory fraction of Caesalpinia decapetala.
METHODS AND RESULTS:
The compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography and their structures were determined by chemical evidence and pectral analysis. Nine compounds were obtained from C. decapetala and they were identified as( ±) protosappanin B( 1),scopoletin-7-O-β-D-glucopyranoside( 2),4-hydroxy-3-methoxypheny-1-O-β-D-glucopyranoside( 3),( 1' R,3' S,5' R,8' S,2Z,4E)-dihydrophaseic acid-3'-O-β-D-glucopyranoside( 4),( 1'R,3'S,5'R,8'S,2E,4E)-dihydrophaseic acid-3'-O-β-D-glucopyranoside( 5), liquiritigenin( 6), isoscopoletin( 7),
7-Hydroxy-3-(4-hydroxybenzylidene)chroman-4-one
( 8),3-deoxysappanchalcone( 9).
CONCLUSIONS:
Compounds 2-5,7 were isolatedfrom thegenus C. for the firs time,and compounds 6,8 were obtained from the C. decapetala for the first time.
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