7-Hydroxy-2',5,8-trimethoxyflavanone
Reference standards.
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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.
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Chemical & Pharmaceutical Bulletin, 1988, 36(9):3654-3658.
Studies on Nepalese Crude Drugs. V. On the Flavonoid Constituents of the Root of Scutellaria discolor COLEBR. [Reference:
WebLink]
METHODS AND RESULTS:
Four new flavanones (I-IV) and a new chalcone (V) were isolated from the root of Scutellaria discolor COLEBR., together with wogonin, norwogonin, 5, 7, 2'-trihydroxy-8-methoxyflavone, 5, 7-dihydroxy-8, 2'-dimethoxyflavone and wogonin 7-O-glucuronide. The structures of I-V were shown to be 2 (S)-5, 7-dihydroxy-8, 2'-dimethoxyflavanone, 2 (S)-7-hydroxy-5, 8, 2'-trimethoxyflavanone(7-Hydroxy-2',5,8-trimethoxyflavanone), (±)-5, 2'-dihydroxy-7, 8, 6'-trimethoxyflavanone, (±)-5, 2'-dihydroxy-6, 7, 6'-trimethoxyflavanone and 2', 4'-dihydroxy-2, 3', 6'-trimethoxychalcone, respectively, based on spectral data and simple chemical modifications.
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