Sarracenin
Reference standards.
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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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Research Square2021, March 3rd.
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Journal of Chemical Research,2003(10):676-677.
Iridoid Glucosides from Chinese Herb Lonicera chrysatha and Their Antitumor Activity.[Reference:
WebLink]
METHODS AND RESULTS:
A new bis-iridoid glucosides, secologanin methyl hemiacetal-yl-6`- secologanin dimethyl acetal (chrysathain, 1), was isolated from the methanol extract of the leaves of Chinese medicinal plant Lonicera chrysatha along with nine known iridoid glucosides, i.e., loganin (2), secologanin (3), secologanin dimethylacetal (4), 8-epi-kingiside (5) 7α-morroniside (6), 7β-morroniside (7), vogeloside (8) 7-epi-vogeloside (9) and Sarracenin (10). Their structures were elucidated by spectroscopic methods.
CONCLUSIONS:
Compounds 1-5 showed moderate in vitro antitumour activity against human promyelocytic leukemia (HL-60) cells.
Nat Prod Res. 2011 Oct;25(17):1614-20.
A new iridoid from Guettarda grazielae M.R.V. Barbosa (Rubiaceae).[Pubmed:
22011220 ]
METHODS AND RESULTS:
Chromatographic fractionation of the chloroform extracts from the stem bark and stems of Guettarda grazielae resulted in the isolation of a new iridoid (guettardodiol, 1) and the secoiridoid Sarracenin (2), described for the first time in this genus.
CONCLUSIONS:
The structural elucidation of these compounds was based on spectroscopic analyses (IR, MS as well as 1-D and 2-D NMR experiments).
