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Przewaquinone C
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name Przewaquinone C
Price:
CAS No.: 96839-29-1
Catalog No.: CFN92021
Molecular Formula: C18H16O4
Molecular Weight: 296.3 g/mol
Purity: >=98%
Type of Compound: Diterpenoids
Physical Desc.: Powder
Source: The roots of Salvia miltiorrhiza
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF    Manual
Similar structural: Comparison (Web)  (SDF)
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Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry
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10 mM * 1 mL in DMSO / Inquiry / In-stock
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Biological Activity
Description: Przewaquinone C shows antioxidant properties.
Przewaquinone C Description
Source: The roots of Salvia miltiorrhiza
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: 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

After receiving: 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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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.
IF=36.216(2019)

PMID: 29328914

Cell Metab. 2020 Mar 3;31(3):534-548.e5.
doi: 10.1016/j.cmet.2020.01.002.
IF=22.415(2019)

PMID: 32004475

Mol Cell. 2017 Nov 16;68(4):673-685.e6.
doi: 10.1016/j.molcel.2017.10.022.
IF=14.548(2019)

PMID: 29149595

ACS Nano. 2018 Apr 24;12(4): 3385-3396.
doi: 10.1021/acsnano.7b08969.
IF=13.903(2019)

PMID: 29553709

Nature Plants. 2016 Dec 22;3: 16206.
doi: 10.1038/nplants.2016.205.
IF=13.297(2019)

PMID: 28005066

Sci Adv. 2018 Oct 24;4(10): eaat6994.
doi: 10.1126/sciadv.aat6994.
IF=12.804(2019)

PMID: 30417089
Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.375 mL 16.8748 mL 33.7496 mL 67.4992 mL 84.3739 mL
5 mM 0.675 mL 3.375 mL 6.7499 mL 13.4998 mL 16.8748 mL
10 mM 0.3375 mL 1.6875 mL 3.375 mL 6.7499 mL 8.4374 mL
50 mM 0.0675 mL 0.3375 mL 0.675 mL 1.35 mL 1.6875 mL
100 mM 0.0337 mL 0.1687 mL 0.3375 mL 0.675 mL 0.8437 mL
* 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.
Protocol
Structure Identification:
Phytochem. Lett., 2016,12.6.
Determination of phenolic compounds and diterpenes in roots of Salvia miltiorrhiza and Salvia przewalskii by two LC–MS tools: Multi-stage and high resolution tandem mass spectrometry with assessment of antioxidant capacity[Reference: WebLink]

METHODS AND RESULTS:
Comparative phytochemical analyses of hydroalcoholic (50% EtOH) extracts from roots of S. miltiorrhiza (SM) and S. przewalskii (SP) were performed using two complementary LC–MS systems: the first system HPLC-DAD-MSⁿ an ion trap mass spectrometer and the second system consisted high resolution MS/MS Orbitrap mass spectrometer. The individual compounds were identified using a previously published approach via comparison of the exact molecular masses, mass spectra and retention times to those of standard compounds, online available databases and literature data. Moreover, the determination of antioxidative activities of extracts by DPPH and FRAP methods was carried out.
CONCLUSIONS:
Analysis allowed to identify 39 chemical compounds in extracts from both species. Extract from root of SP differs from SM in the presence of several metabolites such as: przewalskinic acid and their derivatives, Przewaquinone C, przewaquinonate A, glycosides of rosmarinic acid, methyltanshinonate, whereas tanshinones, salvianolic acids and lithospermic acids occurred in both species. Moreover, it was shown that hydroalcoholic extract from roots of SM exerted stronger antioxidant properties in a FRAP test (max. 323.92 μM Fe²⁺/L) and in DPPH test (max. 78.64 nM TE) in comparison with SP extract.
Martynoside

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Vomifoliol

Catalog No: CFN98245
CAS No: 23526-45-6
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(+)-Borneol

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CAS No: 464-43-7
Price: $30/20mg
Jervine

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Taxiphyllin

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Ginkgolic acid C15:1

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CAS No: 22910-60-7
Price: $118/20mg
Theaflavin

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Price: $268/20mg
Isovitexin 2''-O-arabinoside

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Ganoderiol F

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Isoescin IA

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