Oroxylin A 7-O-beta-D-glucuronide methyl ester

Oroxylin A 7-O-beta-D-glucuronide methyl ester
Product Name Oroxylin A 7-O-beta-D-glucuronide methyl ester
CAS No.: 82475-01-2
Catalog No.: CFN92282
Molecular Formula: C23H22O11
Molecular Weight: 474.4 g/mol
Purity: >=98%
Type of Compound: Flavonoids
Physical Desc.: Yellow powder
Source: The roots of Scutellaria regeliana Nakai
Solvent: DMSO, Pyridine, Methanol, Ethanol, etc.
Oroxylin A 7-O-beta-D-glucuronide methyl ester possibly possesses the potential immune activities.
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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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    The separations and purifications were taken by silica gel and ODS chromatogram columns as well as preparative HPLC, and the structural identification based on physicochemical property, ¹H-NMR, and ¹³C-NMR as well as HR-MS data. And the immune activities were evaluated by mice splenic lymphocyte proliferation model induced by LPS. Thirteen compounds were obtained from the butanol fraction of the 70% ethanol extract of N. physaloides fruits, which were identified as 3''-hydroxy-puerarin (1), puerarin-6″-O-glucoside (2), daidzein 8-C-[α-D-apiofranosyl-(1→6)]-β-D-glucopyranoside (3), puerarin (4), 3''-methoxyl-puerarin (5), chrysin 6-C-α-L-arabinopyranosyl-8-C-β-D-glucopyranoside (6), Oroxylin A 7-O-beta-D-glucuronide methyl ester (7), daidzin (8), baicalin (9), quercetin-3-O-β-D-galactopyranoside (10), quercetin 3-rutinoside (11), kaempferol 3-rutinoside (12), and quercetin 3-glucoside (13), respectively. The results indicated that compounds 1-3, 7, 9-10, and 12-13 could inhibit the proliferation of mice spleen lymphocytes and 6 could promote the proliferation in the influence of mice spleen lymphocytes proliferation induced by LPS.
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