ChemFaces is a professional high-purity natural products manufacturer.
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1. Reference standards
2. Pharmacological research
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More articles cited ChemFaces products.
Food Science and Bio.31 October 2016BMC Complement Altern Med.2017 Aug 3;Sci Rep. 2018 Jan 11;FEMS Microbiol Lett. 2017 Jun 15;Industrial Crops and Products2017 Jan.
J Nat Med.2017 Jul 5. Mediators Inflamm.2016:7216912. PLoS One. 2017 Aug 8;Phytother Res. 2016 Dec;Plant Methods. 2017 Dec 6;
J. of Food Composition & Analysis2017Mol Cells.2015 Sep 30;38(9):765-72.J Ethnopharmacol. 2017 Feb 23;Phytomedicine15 Dec. 2015,1262–1268
Our products had been exported to the following research institutions and universities, And still growing.
University of Amsterdam (Netherlands)Celltrion Chemical Research Inst... (Korea)Weizmann Institute of Science (Israel)The Ohio State University (USA)
Universidad Miguel Hernández (Spain)Universidad de La Salle (Mexico)University of Beira Interior (Portugal)University of Dicle (Turkey)
Cornell University (USA)Universidade Católica Portuguesa (Portugal)Kyung Hee University (Korea)
||Neoprzewaquinone A has algicidal effect on M. aeruginosa , with EC50 of 4.68 mg /L, the potential inhibition mechanisms are neo-przewaquinone A caused M. aeruginosa cells morphologic damage or lysis.
|Chemosphere. 2013 Oct;93(6):997-1004. |
|Algicidal activity of Salvia miltiorrhiza Bung on Microcystis aeruginosa--towards identification of algicidal substance and determination of inhibition mechanism.[Pubmed: 23810520]|
|The present study was to isolate and identify a potent algicidal compound from extract of Salvia miltiorrhiza and study the potential inhibition mechanism on Microcystis aeruginosa.
METHODS AND RESULTS:
Column chromatography and bioassay-guided fractionation methods were carried out to yield neo-przewaquinone A, which was identified by spectral analysis. The EC50 of Neoprzewaquinone A on M. aeruginosa were 4.68 mg L(-1). In addition, neo-przewaquinone A showed relatively higher security on Chlorella pyrenoidosa and Scenedesmus obliquus, with the EC50 values of 14.78 and 10.37 mg L(-1), respectively. For the potential inhibition mechanisms, Neoprzewaquinone A caused M. aeruginosa cells morphologic damage or lysis, increased malondialdehyde content and decreased the soluble protein content, total antioxidant and superoxide dismutase activity, and significantly inhibited three photosynthesis-related genes (psaB, psbD, and rbcL).
The results demonstrated the algicidal effect of Neoprzewaquinone A on M. aeruginosa and provided the possible inhibition mechanisms.
Neoprzewaquinone A Description
||The roots of Salvia miltiorrhiza
||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: firstname.lastname@example.org
||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.2017.12.030.PMID: 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.
|Yao Xue Xue Bao. 2003 May;38(5):354-7. |
|Chemical constituents in the roots of Salvia przewalskii Maxim.[Pubmed: 12958839]|
|To investigate the chemical composition of the root of Salvia przewalskii Maxim.
METHODS AND RESULTS:
Compounds were isolated by silica gel column chromatography. Structures of these compounds were elucidated by spectral analysis (EI-MS, FAB-MS, 1HNMR, 13CNMR, 1H-1H COSY, 1H-13C COSY, HMBC, NOESY) and phytochemical properties.
Eight compounds were isolated and identified as: tanshinone II-A (I), crypotanshinone (II), przewaquinone A (III), sugiol (IV), ursolic acid (V), 2 alpha, 3 alpha-dihydroxy urs-12-ene-28-acid (VI), oleanolic acid (VII), and Neoprzewaquinone A (VIII).
Compound VIII is a new compound, and compound II, IV, V, VI and VII are isolated from this plant for the first time.