3,5,7-Trihydroxychromone
3,5,7-Trihydroxychromone exhibits weak antiangiogenic 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 Traditional & Herbal Drugs, 2014, 45(7):900-905.
Chemical constituents from Ampelopsis cantoniensis and their anti-angiogenic activities.[Reference:
WebLink]
To study the chemical constituents from Ampelopsis cantoniensis and their antiangiogenesis activities.
METHODS AND RESULTS:
The compounds were isolated and purified by various chromatographic techniques and their structures were elucidated by spectral analysis, the antiangiogenic activities of compounds isolated were evaluated using a zebrafish model. Fifteen compounds were obtained and identified as cantonienol (1), nootkatone (2), aromadendrane-4β,10β-diol (3), abscisic acid (4), 12-oxo-hardwickiic acid (5), betulinic acid (6), platanic acid (7), vanillic acid (8), resveratrol (9), nectandrin B (10), nectandrin A (11), 3,5,7-Trihydroxychromone (12), 5,7,3',4',5'-pentahydroxyflavanone (13), taxifolin (14) and myricitrin (15).
CONCLUSIONS:
Compound 1 is a new sesquiterpene and named as cantonienol. Compounds 2–7 and 10–12 are isolated from the Ampelopsis plants for the first time, and the other compounds are firstly reported in this plant. Compounds 9, 11 and 12 exhibited weak antiangiogenic activity when evaluated using a zebrafish model.
Zhongguo Zhong Yao Za Zhi. 2009 Jul;34(13):1690-1.
Chemical constituents in herbs of Polygonum jucundum.[Pubmed:
19873783]
To investigate the chemical constituents in herbs of Polygonum jucundum.
METHODS AND RESULTS:
The 85% ethanol extract was separated by means of silica gel and Sephadex LH-20 column chromatography. The compounds isolated from the plant were identified by physicochemical properties and spectroscopic evidence. Eight compounds were isolated and identified as: quercetin-3'-O-beta-D-galactoside (1), 8-methoxyquercetin (2), pigenin (3), luteolin (4), quercetin (5), 3,5,7-Trihydroxychromone (6), p-hydroxybenzaldehyde (7), beta-sitosterol (8).
CONCLUSIONS:
All compounds were isolated from this plant for the first time, compounds 5- 8 were isolated from the genus Polygonum for the first time.
