Dihydrobaicalein
Dihydrobaicalein is a natural product from Scutellaria baicalensis Georgi.
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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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Japanese Journal of Pharmacognosy, 1988 , 42 :204-7.
Studies on the Nepalese Crude Drugs (X) : On the Flavonoid and the Stilbene Constituents of the Leaves of Scutellaria scandens BUCH. -HAM. ex D. DON[Reference:
WebLink]
METHODS AND RESULTS:
From the leaves of Scutellaria scandens BUCH.-HAM. ex D.DON, two new natural stilbenes (I and II), two known stilbenes (pinosylvin and gaylussacin) and thirteen known flavonoids (chrysin, apigenin, baicalein, Dihydrobaicalein, scutellarein, isocarthamidin, chrysin 7-O-glucuronide, apigenin 7-O-glucuronide, baicalin, dihydrobaicalin, scutellarin, isocarthamidin 7-O-glucuronide and vicenin II) were isolated.
CONCLUSIONS:
I and II were identified as pinosylvin 3-O-β-D-glucopyranoside and 3,5-dihydroxy-trans-stilbene 2-carboxylic acid, respectively, on the basis of the spectral and chemical data. I and II have been chemically synthesized, but this paper describes the first isolation of I and II from natural sources.
