Gnetumontanin B

Gnetumontanin B
Product Name Gnetumontanin B
CAS No.: 809237-87-4
Catalog No.: CFN92853
Molecular Formula: C42H32O11
Molecular Weight: 713.0 g/mol
Purity: >=98%
Type of Compound: Phenols
Physical Desc.: Powder
Targets: TNF-α
Source: The herbs of Gnetum montanum
Solvent: DMSO, Pyridine, Methanol, Ethanol, etc.
Price:
Gnetumontanin B shows potent inhibition of TNF-alpha.
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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.
  • Molecules.2024, 29(6):1240.
  • Pharmacia2024, 71:1-9.
  • Cells.2023, 12(1):168.
  • Toxicol In Vitro.2023, 86:105521.
  • Plants (Basel).2020, 9(11):1535.
  • Mol Neurobiol.2021, 58(8):3665-3676.
  • Biochem Biophys Res Commun.2017, 482(4):1095-1101
  • Processes2023, 11(2), 385¡£
  • Curr Issues Mol Biol.2022, 44(10):5106-5116.
  • Int J Mol Sci.2023, 24(24):17589.
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    METHODS AND RESULTS:
    From the lianas of Gnetum montanum Markgr. f. megalocarpum Markgr., four new stilbenoids, gnetumontanins A - D ( 1 - 4) were obtained together with 16 known compounds. Gnetumontanin A ( 1) is the first oligostilbene dimerized from two oxyresveratrol units, Gnetumontanin B ( 2) is a new stilbene trimer oligomerized from two oxyresveratrol and one resveratrol units, gnetumontanin C ( 3) is a new stilbenoid with a novel skeleton having a delta-lactone moiety and gnetumontanin D ( 4) is a glucoside of 3. Their structures were determined by means of spectroscopic evidence, especially 2D NMR techniques.
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    Gnetumontanin B showed potent inhibition of TNF-alpha with an inhibitory ratio of 58.1 % (P < 0.05) at a concentration of 10 ( - 5) mol L (-1) and the IC (50) was 1.49 x 10 ( - 6) mol L (-1).
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