(-)-Syringaresnol-4-O-beta-D-apiofuranosyl-(1->2)-beta-D-glucopyranoside is a natural lignan from Albizia julibrissin Durazz..
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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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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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Isolation and identification of chemical constituents from Albizia julibrissin Durazz..[Pubmed: 12920839
To study the chemical constituents of the stem bark of Albizia julibrissin Duraz..
METHODS AND RESULTS:
Chemical constituents were isolated and their structures identified by the repeated chromatography and spectral analysis.
Five compounds were obtained as follows: (-)-Syringaresnol-4-O-beta-D-apiofuranosyl-(1->2)-beta-D-glucopyranoside (1), (6R)-trans-2,6-dimethyl-6-O-beta-D-quinovosyl-2,7-menthiafolic acid (2), (6S)-trans-2,6-dimethyl-6-O-beta-quinovosyl-2,7-menthiafolic acid (3), 5,5'-dimethoxy-7-oxolariciressinol (4) and (-)syringaresinol (5).
Compounds 2, 3 and 4 were new natural products isolated from this plant for the first time.