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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: email@example.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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Structural elucidation and conformational analysis of new lignan butenolides from the leaves of bupleurum salicifolium.[Reference: WebLink
METHODS AND RESULTS:
From the leaves of Bupleurum salicifolium two new benzylidene-benzyl-γ-butyrolactone-type lignans salicifoline (2) and isosalicifoline (3) were isolated.
The dibenzyl-butyrolactone (-)-Epinortrachelogenin (1) was also isolated and it is the first time than this lignan has been obtained from a natural source.
Journal of Wood Science, 2004 , 50 (6) :548-551.
Constituents from the roots of Taxus cuspidata[Reference: WebLink
METHODS AND RESULTS:
The known propelargonidin, afzelechin-(48)-afzelechin (1), the known lignans 7-hydroxynortrachelogenin (2), Epinortrachelogenin (3), nortrachelogenin (4), hydroxymatairesinol (5), allohydroxymatairesinol (6), matairesinol (7), oxomatairesinol (8), and isotaxiresinol (9), and the known taxoids taxinine M (10), taxayuntin (11), and 10-deacetyltaxol (12), and 10-deacetylbaccatin III (13) were isolated from the roots of Taxus cuspidata (Japanese yew, Taxaceae).
The propelargonidin was isolated from Taxus spp. for the first time, and was detected in the roots, bark, and twigs.