11-Hydroxygelsenicine
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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Helvetica Chimica Acta. 2009 Sep;92(9):1889–1894.
Two New 11-Hydroxy-Substituted Gelsedine-Type Indole Alkaloids from the Stems of Gelsemium elegans.[Reference:
WebLink]
METHODS AND RESULTS:
Two new 11-hydroxy-substituted gelsedine-type indole alkaloids, named 11,14-dihydroxygelsenicine (1) and 11-Hydroxygelsenicine (2), together with six known alkaloids, i.e., koumine, gelsemine, 14-hydroxygelsenicine, 11-hydroxyhumantenine, gelsenicine, and (19Z)-akuammidine, were isolated from the EtOH extract of the stems of Gelsemium elegansbenth. Their structures were determined mainly by means of spectroscopic analyses including HR-ESI-MS and 2D-NMR (HSQC, HMBC, 1H,1H-COSY).
CONCLUSIONS:
The configuration of 1 was confirmed by X-ray-diffraction analysis.
