Leiocarposide
Leiocarposide has antiphlogistic and analgesic effects.
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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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Nat Prod Sci.2018, 24(3):206
Chemistry of Natural Compounds2018, 54(3):572-576
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Pharmazie, 1989, 44(8):555-558.
Biotransformation of phenolglycosides leiocarposide and salicin.[Reference:
WebLink]
Leiocarposide (1; 3-beta-D-glucopyranosyloxy-2-methoxy-6-hydroxy-benzoic acid -2'-beta-D-glucopyranosyloxybenzyl ester) is a phenolic glycoside from Solidago virgaurea L.
METHODS AND RESULTS:
After oral administration to rats it will be only poorly absorbed and mostly unchanged fecaly excreted. In the urine were found less than 10% as metabolites: leiocarpic acid (3; 3,6-dihydroxy-2-methoxy-benzoic acid, 2% of the administered dose), 3-conjugates (2%), salicylic acid (5; 0.5%), 5-conjugates (0.1%) and salicyluric acid (6; 0.5%). On the other hand salicin (2), structural part of 1, is good absorbed. In the urine were excreted 15% of the unchanged drug and the following metabolites: 0.1% saligenin (4), 30% 5, 5% 5-conjugates, 0.1% 6, 2% gentisic acid (7) and 0.1% 2,3-dihydroxy-benzoic acid (8).
CONCLUSIONS:
The different metabolic rates are explicable by the high stability of the ester bond of 1. It is hydrolyzed in artificial intestinal fluid only very slowly (t1/2 = 41.7 h).
