(-)-Lyoniresinol
(-)-Lyoniresinol has antioxidant activity.
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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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Chemistry & Biodiversity 6(4):540-50.
arennanosides A-H, Eight New Lignan Glucosides from Tarenna attenuata and Their Protective Effect on H 2 O 2 -Induced Impairment in PC12 Cells.[Reference:
WebLink]
METHODS AND RESULTS:
Eight new lignan glucosides, tarennanosides A-H ( 1 - 8 , resp.), were isolated from the whole plant of Tarenna attenuata , together with three known compounds, fernandoside, (-)-Lyoniresinol, and (-) - isolariciresinol. The planar structures of new compounds were elucidated mainly by analysis of physical and spectroscopic data, and the absolute configurations were determined by acid hydrolysis as well as CD spectroscopy. Compounds 1 and 2 exhibited potent antioxidant activities against H2O2-induced impairment in PC12 cells.
CONCLUSIONS:
Preliminary mechanism study by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method showed that these two compounds could act as radical scavengers.
Journal of Natural Products, 2004, 52(6):1327-1330.
Lignan Glycosides from the Heartwood of European Oak Quercus petraea.[Reference:
WebLink]
METHODS AND RESULTS:
( + )-Lyoniresinol [1] and (-)-Lyoniresinol [ent-1] (the former being more abundant), (+)-lyoniresinol 2a-O-β-D-glucopyranoside [3], lyoniside [4], and a new metabolite, namely (-)-Lyoniresinol 2a-O-β-D-xylopyranoside (ent-4) 1, have been isolated from Quercus petraea heartwood.
CONCLUSIONS:
Their structures were deduced from chemical and spectral data. 1 The term ent refers to the aglycone moiety.
