(+)-Isolariciresinol 9'-O-glucoside is a natural product from Oplopanax horridus.
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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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Phenolic constituents from Oplopanax horridus.[Pubmed: 25282894
METHODS AND RESULTS:
The chemical constituents were isolated and purified by various chromatographic techniques indluding silica gel, reverse phase silica gel, sephadex LH-20 and pre-HPLC and identified by their physicochemical properties and spectral data. Sixteen phenolic compounds had been isolated and n-butanol extracts which were fractionated from the ethanol extract of Oplopanax horridus roots bark. Their structures were identified as below, including 7 phenylpropanoid compounds, ferulic acid (1), 3-acetylcaffeic acid (2), caffeic acid (3), homovanillyl alcohol 4-O-beta-D-glucopyranoside (4), 3-hydroxyphenethyl alcohol 4-O-beta-D-glucopyranoside (5), 3, 5-dimethoxycinnamyl alcohol 4-O-beta-D-glucopyranoside (6), and 3-dimethoxycinnamyl alcohol 4-O-beta-D-glucopyranoside (7). Three coumarins, scopoletin (8), esculetin (9) and 3'-angeloyl-4'-acetyl-cis-knellactone (10). And 6 lignan compounds, (+)-isolariciresinol-9'-O-beta-D-glucopyranoside [(+)-Isolariciresinol 9'-O-glucoside ,11], 3, 3'-dimethoxy-4, 9, 9'-trihydroxy-4', 7-epoxy-5', 8-lignan-4, 9-bis-O-beta-D-glucopyranoside (12), (+)-5, 5'-dimethoxylariciresinol 4'-O-beta-D-glucopyranoside (13), (-)-5,5'-dimethoxylariciresinol 4'-O-beta-D-glucopyranoside (14), (-)-pinoresinol 4'-O-beta-D-glucopyranoside (15), and (+)-5, 5'-dimethoxylariciresinol 9'-O-beta-D-glucopyranoside (16).
All compounds were isolated and identified for the first time from this plant. All the constituents except compounds 4, 6, 12 and 13 were obtained for the first time from the genus Oplopanax.