Cuspidiol
Cuspidiol shows cytotoxicity against Jurkat T cell clone E6.1 at 7.3 ug/mL.
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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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Bull. Korean Chem. Soc., 2010, 31(4):1081-4.
Cytotoxic Constituents from the Leaves of Zanthoxylum schinifoliu.[Reference:
WebLink]
METHODS AND RESULTS:
The results showed that the methylene chloride fraction exhibited the strongest MTT cytotoxicity. Chromatographic separation of the methylene chloride and butanol fractions had yielded a quinolin (1), three phenylpropanoids (2, 3, 12), four coumarins (4 ~ 7), three triterpenoids (8 ~ 10), an alkaloid (11), an alcohol glucoside (13) and three monoterpene glucosides (14, 15, 16). One of these compounds were identified as new threo-6-amino-5-hydroxy-5-methyl- 1,3-oxazinan-4-one (11) together with fifteen known, 3-heptyl- 2-methylisoquinolin-1(2H)-one (1), integrifoliodiol (2), Cuspidiol (3), bergapten (4), aurapten (5), 8-hydroxy-7-methoxy- chromen-2-one (6), 6,7-dimethoxy-2H-naphthalen-1-one (7), lupeol (8), lupeone (9), β-sitosterol (10), syringin (12), 2-propyl alchol β-D-glucopyranoside (13), vomifoliol-9-O-β-D-glucopyranoside (14), betulalbuside A (15) and cnidioside C (16) on the basis of spectroscopic and chemical evidences.
CONCLUSIONS:
All of the compounds were isolated for the first time from this plant except 5 and 7. In the MTT cytotoxicity assay against Jurkat T cell clone E6.1, IC50 values of Cuspidiol (3) and auraptene (5) were obtained at 7.3 μg/mL and 16.5 μg/mL, respectively.
