Valtropine
Valtropine is a human growth hormone similar product, will be listed in the UK.
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manager@chemfaces.com
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service@chemfaces.com
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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: service@chemfaces.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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Phytochemistry,1992,31(9): 3069–3071.
Alkaloid metabolism in callus and regenerating shoot cultures of a Duboisia hybrid[Reference:
WebLink]
Undifferentiated callus and regenerating shoot callus on Murashige and Skoog (MS) medium was unable to metabolize scopolamine to hyoscyamine.
METHODS AND RESULTS:
Shoots on MS medium supplemented with hyoscyamine on extraction afforded unchanged hyoscyamine (44%). However, 16% was converted to 6-hydroxyhyoscyamine and 12% to scopolamine. Metabolism appeared unaffected by the number of shoots formed. Callus only gave very low yields of these two metabolities.
CONCLUSIONS:
Control callus and shoots on MS medium without alkaloid contained traces of Valtropine and/or butropine. However, both callus and shoots on MS medium supplemented with either scopolamine or hyoscyamine showed enhanced levels of these minor alkaloids at times by a factor exceeding 500.
