ChemFaces is a professional high-purity natural products manufacturer.
Product Intended Use
1. Reference standards
2. Pharmacological research
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Address: No. 83, CheCheng Rd., WETDZ, Wuhan, Hubei 430056, PRC
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* 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.
Journal of Life Science2017.2;Sci Rep. 2017 Apr 11;Evid Based Complement Alternat Med. 2016 Jun 13.Analytical sci. & Tech2016Jou. of Agromedicine and Med. Sci.2018;
Food Chem. 2017 Apr 15;US20170000760 A1Jan 5, 2017Mol Cells.2015 Sep 30;38(9):765-72.Clin Exp Pharmacol Physiol.2015 Aug 1J Bone Miner Res. 2017 Jul 26.
Viruses. 2017 Oct 3;9(10). Evid Based Complement Alternat Med.2017:7383104British Jou. Med. & Med. Research2014 Jan 1Eur J Pharm Sci. 2016 May 18;
Our products had been exported to the following research institutions and universities, And still growing.
Kazusa DNA Research Institute (Japan)Center for protein Engineering (... (Belgium)University of Illinois at Chicago (USA)Melbourne University (Australia)
Universidade Católica Portuguesa (Portugal)Harvard University (USA)Periyar University (India)Lund University (Sweden)
Martin Luther University of Hall... (Germany)Shanghai Institute of Organic Ch... (China)Universidad Miguel Hernández (Spain)
||The flower buds of Chimonanthus praecox
|Biological Activity or Inhibitors:
||1. (-)-Chimonanthine (IC50 = 0.93 uM) shows potent inhibitory effects on melanogenesis in theophylline-stimulated murine B16 melanoma 4A5 cells.
||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.
Chimonanthine References Information
J Nat Med. 2014 Jul;68(3):539-49.
|Dimeric pyrrolidinoindoline-type alkaloids with melanogenesis inhibitory activity in flower buds of Chimonanthus praecox.[Pubmed: 24668298]|
|A methanol extract of the flower buds of Chimonanthus praecox (L.) Link (Calycanthaceae) demonstrated inhibitory effects on melanogenesis in theophylline-stimulated murine B16 melanoma 4A5 cells. From the extract, five dimeric pyrrolidinoindoline alkaloids and four sesquiterpenes were isolated, together with 16 known compounds. Among them, (-)-Chimonanthine (1, IC50 = 0.93 μM), (-)-folicanthine (2, 1.4 μM), and (-)-calycanthidine (3, 1.8 μM) showed potent inhibitory effects without notable cytotoxicity at the effective concentrations. The most potent alkaloid (1) inhibited both tyrosinase and tyrosine-related protein-1 mRNA expressions, to which the melanogenesis inhibitory activity would be ascribable.