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.
Journal of the Chinese Chemical Society, 2013 , 49 (3) :433-6.
Chemical Constituents of the Aerial Part of Celastrus Hypoleucus[Reference:
WebLink]
METHODS AND RESULTS:
Fourteen compounds including eight triterpenoids, 12-oleanaen-3beta-ol (beta-amyrin) (1), 12-oleanaen-3beta-caffeate (2), 9(11),12-oleanadien-3beta-ol (9(11),12-Oleanadien-3-ol,3), 9(11),12-oleanadien-3-one (4), 9(11),12-oleanadien-3beta-caffeate (5), friedela-3-one (friedelin) (6), friedela-3-one-29-ol (7), and 12-gammateraen-3beta-ol (tetrehymanol) (8); one steroid, beta-sitosterol (9); one long-chain acid, octadecadienoic acid (10); two esters, ester of n-octaolecyl-4-hydroxy-cinnamate (11), and ester of n-octadecyl-caffeic acid (12); one diterpene, 8beta,19-dihydroxy-3-oxopimar- 15-ene (13); one sesquiterpene, 1beta,2beta,9alpha-trihydroxy-beta-dihydroagarofuran (14) were isolated from the aerial part of Celastrus hypoleucus, These compounds were characterized and identified by physical and spectral methods.
CONCLUSIONS:
All compounds were isolated for the first time from this plant. Among them 12-oleanaen-3beta- caffeate (2) and 9(11),12-oleanadien-3beta-caffeate (5) are two new compounds, and ester of n-octadecyl-caffeic acid (12) possessed antilipoperoxidative effect by specifically scavenging the hydroxyl free radical (.OH) in vitro.
