erythro-Guaiacylglycerol beta-sinapyl ether
Standard reference
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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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Zhongguo Zhong Yao Za Zhi. 2009 May;34(10):1225-7.
Lignans from stems of Sambucus williamsii.[Pubmed:
19673382]
To study the chemical constitutents of the 60% ethanol extract of the stems of Sambucus williamsii.
METHODS AND RESULTS:
Compounds were isolated and purified by Diaion D101,silica gel,Sephadex LH-20,ODS column chromatography and preparative HPLC.Their structures were identified by spectroscopic methods. Seven lignans were isolated and identified as erythro-guaiacylglycerol-β-O-4′-sinapyl ether(erythro-Guaiacylglycerol beta-sinapyl ether,1),1-(4′-hydroxy-3′-methoxyphenyl)-2-[4″-(3-hydroxypropyl)-2″,6″-dimethoxyphenoxy]propane-1,3-diol(2),isolariciresinol(3),burselignan(4),lyoniresinol(5),5-methoxy-isolariciresinol(6),cycloolivil(7).
CONCLUSIONS:
All these compounds were obtained from this genus for the first time.
