ChemFaces is a professional high-purity natural products manufacturer.
Product Intended Use
1. Reference standards
2. Pharmacological research
How to Order
Orders via your E-mail:
1. Product number / Name / CAS No.
2. Delivery address
3. Ordering/billing address
4. Contact information
Sent to Email: firstname.lastname@example.org
Order & Inquiry & Tech Support
Address: No. 83, CheCheng Rd., WETDZ, Wuhan, Hubei 430056, PRC
Delivery & Payment method
1. Usually delivery time: Next day delivery by 9:00 a.m. Order now
2. We accept: Wire transfer & Credit card & Paypal & Western Union
* Packaging according to customer requirements(5mg, 10mg, 20mg and more). We shipped via FedEx, DHL, UPS, EMS and others courier.
More articles cited ChemFaces products.
ScientificWorldJournal. 2014 Feb 9.Proc Natl Acad Sci U S A. 2016 Jul 26;Mediators Inflamm. 2016;2016:6189590.Tea Res. Ins. Of ChinaJuly 13, 2017;Phytomedicine15 Dec. 2015,1262–1268
Int J Anal Chem.2017;J Sci Food Agric. 2017 MarPhytomedicine2015 August 14Phytochemistry Letters22 Dec. 2016Biochem Biophys Res Commun. 2017 Dec 16;
Sci Rep. Jan. 2018Food Analytical Methods07 April 2017Molecules. 2017 Feb 21;Chem Biol Interact. 2016 Dec 25
Our products had been exported to the following research institutions and universities, And still growing.
Yale University (USA)Anna University (India)Universiti Putra Malaysia(UPM) (Malaysia)Indian Institute of Science (India)
University of Queensland (Australia)Korea Intitute of Science and Te... (Korea)Kazusa DNA Research Institute (Japan)Max-Planck-Insitut (Germany)
Medical University of Gdansk (Poland)Kyung Hee University (Korea)University of Madras (India)
||Gnetol significantly suppresses melanin biosynthesis in murine B16 melanoma cells, it has a strong inhibitory effect on murine tyrosinase activity. Gnetol is active in the inhibition of arachidonic acid (AA)-induced platelet aggregation.Gnetol has the IC(50) value of 1.3 uM towards butyrylcholinesterase and shows a reversible and competitive inhibition in the kinetic study.
||Tyrosinase | BACE|
|Biosci Biotechnol Biochem. 2003 Mar;67(3):663-5. |
|Gnetol as a potent tyrosinase inhibitor from genus Gnetum.[Pubmed: 12723623]|
|Gnetol (2,3',5',6-tetrahydroxy-trans-stilbene), a naturally occurring compound particularly found in the genus Gnetum, had a strong inhibitory effect on murine tyrosinase activity.|
METHODS AND RESULTS:
Gnetol (IC50, 4.5 microM) was stronger than kojic acid (IC50, 139 microM) as a standard inhibitor for murine tyrosinase activity. Moreover, Gnetol significantly suppressed, melanin biosynthesis in murine B16 melanoma cells.
|Phytother Res. 2012 Oct;26(10):1564-8. |
|Stilbenoids from Gnetum macrostachyum attenuate human platelet aggregation and adhesion.[Pubmed: 22511550 ]|
|Platelets play a critical role in pathogenesis of cardiovascular disorders and strokes. The inhibition of platelet function is beneficial for the treatment and prevention of these diseases.
The phytochemical investigation of stilbenoids from Gnetum macrostachyum Hook. f. led to the isolation of trans-resveratrol (1), isorhapotigenin (2), Gnetol (3), bisisorhapontigenin B (4), gnetin C (5), parvifolol A (6), latifolol (7) and gnetuhainin C (8).
METHODS AND RESULTS:
The isolated stilbenoids were evaluated for in vitro antiplatelet activities via agonist-induced platelet aggregation and static platelet-collagen adhesion assays using washed human platelets. Compounds 1, 2 and 3 were active in the inhibition of arachidonic acid (AA)-induced platelet aggregation. Compound 2 and its dimer, compound 4, were the most active stilbenoids in thrombin-induced platelet aggregation. Moreover, compounds 4, 5 and 6, tended to be more potent than monomeric and trimeric stilbenoids in a human platelet-collagen adhesion assay under static conditions.
This is the first report of the antiplatelet activity of stilbenoids isolated from G. macrostachyum.
||The herbs of Gnetum cleistostachynm
||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
||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: email@example.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.
Recent ChemFaces New Products and Compounds
Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals
Cell. 2018 Jan 11;172(1-2):249-261.e12. doi: 10.1016/j.cell.2017.12.019.PMID: 29328914
Mol Cell. 2017 Nov 16;68(4):673-685.e6. doi: 10.1016/j.molcel.2017.10.022.PMID: 29149595
Scientific Reports 2017 Dec 11;7(1):17332.doi: 10.1038/s41598-017-17427-6.PMID: 29230013
Molecules. 2017 Oct 27;22(11). pii: E1829.doi: 10.3390/molecules22111829.PMID: 29077044
J Cell Biochem. 2018 Feb;119(2):2231-2239.doi: 10.1002/jcb.26385. PMID: 28857247
Phytomedicine. 2018 Feb 1;40:37-47. doi:10.1016/j.phymed.2017.12.030PMID: 29496173
Calculate Dilution Ratios(Only for Reference)
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
|Fitoterapia. 2012 Jun;83(4):780-4. |
|Potent and selective butyrylcholinesterase inhibitors from Ficus foveolata.[Pubmed: 22450264 ]|
METHODS AND RESULTS:
Four stilbenes (1-4), one inseparable mixture of two alkyl diferulates (5a, 5b), one alkyl ferulate (6) and four flavonoids (7-10) were isolated from Ficus foveolata Wall.
Except for quercetin (10), the other ten constituents were isolated from F. foveolata for the first time. In addition, one of the two components in mixture 5 is a new compound identified as (1E,22E)-1,22-docosanediol diferulate (5a). All nine isolated compounds, plus the mixture of 5a and 5b known as 5, exhibited a low or no activity against acetylcholinesterase. However, and interestingly, the stilbenes 1-4 showed a high inhibition towards butyrylcholinesterase.
Gnetol (4) had the lowest IC(50) value of 1.3μM towards butyrylcholinesterase and showed a reversible and competitive inhibition in the kinetic study.