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Centaureidin
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Product Name Centaureidin
Price:
CAS No.: 17313-52-9
Catalog No.: CFN90433
Molecular Formula: C18H16O8
Molecular Weight: 360.31 g/mol
Purity: >=98%
Type of Compound: Flavonoids
Physical Desc.: Powder
Source: The herbs of Eupatorium fortunei Turcz.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
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Similar structural: Comparison (Web)  (SDF)
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According to end customer requirements, ChemFaces provide solvent format. This solvent format of product intended use: Signaling Inhibitors, Biological activities or Pharmacological activities.
Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry
Other Packaging *Packaging according to customer requirements(100uL/well, 200uL/well and more), and Container use Storage Tube With Screw Cap
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Related Screening Libraries
Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
Related Libraries
Biological Activity
Description: Centaureidin augments IFN-gamma promoter activity by approximately four-fold. Centaureidin shows potential vasorelaxant activity. It inhibits dendrite outgrowth from melanocytes by activating Rho, resulting in the inhibition of melanosome transfer from melanocytes to keratinocytes.
Targets: Potassium Channel | IFN-γ
In vitro:
Biochim Biophys Acta. 2006 Mar;1760(3):487-94.
Centaureidin promotes dendrite retraction of melanocytes by activating Rho.[Pubmed: 16476521]

METHODS AND RESULTS:
Centaureidin induces significant morphological changes in normal human epidermal melanocytes and inhibits melanocyte dendrite elongation, resulting in a reduction of melanosome transfer in an in vitro melanocyte-keratinocyte co-culture system. We studied the effects of Centaureidin on the small GTPases. In in vitro binding assay, Centaureidin activated Rho and furthermore, a Rho inhibitor (C. botulinum C3 exoenzyme), a Rho kinase inhibitor (Y27632) and a small GTPase inhibitor (Toxin B) blocked dendrite retraction induced by Centaureidin.
CONCLUSIONS:
These results suggest Centaureidin could act via the Rho signaling pathway, and it may directly or indirectly activate Rho. Thus, Centaureidin appears to inhibit dendrite outgrowth from melanocytes by activating Rho, resulting in the inhibition of melanosome transfer from melanocytes to keratinocytes.
Planta Med. 1998 Mar;64(2):116-9.
Preliminary study of the potential vasodilator effects on rat aorta of centaurein and centaureidin, two flavonoids from Centaurea corcubionensis.[Pubmed: 9580164]

METHODS AND RESULTS:
In this work, the potential vasorelaxant activity of centaurein and Centaureidin, two flavonoids from Centaurea corcubionensis, were studied for the first time in rat aorta. Centaureidin (10 microM-0.1 mM) totally relaxed, in a concentration-dependent manner and with almost equal effectiveness, the contractions induced by NA (IC50 = 16.7 +/- 1.9 microM) or by a high K+ concentration (IC50 = 16.1 +/- 3.1 microM) in intact rat aortic rings. Mechanical removal of endothelium did not significantly modify the vasoralexant effects of this flavone (IC50 = 20.8 +/- 2.4 microM for NA; IC50 = 21 +/- 2.9 microM for K+). On the other hand, centaurein (1 microM-0.1 mM) had no effect on NA- and high K(+)-induced contractions in rubbed and intact rat aortic rings.
CONCLUSIONS:
These results indicate that substitution by glucose in the chemical structure of Centaureidin leads to the loss of its vasodilator activity.
J Ethnopharmacol. 2007 Jun 13;112(2):232-6.
Flavonoids, centaurein and centaureidin, from Bidens pilosa, stimulate IFN-gamma expression.[Pubmed: 17408892]

METHODS AND RESULTS:
Centaurein (EC(50)=75 microg/ml) and its aglycone, Centaureidin (EC(50)=0.9 microg/ml), isolated from this butanol subfraction, augmented IFN-gamma promoter activity by approximately four-fold.
Centaureidin Description
Source: The herbs of Eupatorium fortunei Turcz.
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.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.7754 mL 13.8769 mL 27.7539 mL 55.5078 mL 69.3847 mL
5 mM 0.5551 mL 2.7754 mL 5.5508 mL 11.1016 mL 13.8769 mL
10 mM 0.2775 mL 1.3877 mL 2.7754 mL 5.5508 mL 6.9385 mL
50 mM 0.0555 mL 0.2775 mL 0.5551 mL 1.1102 mL 1.3877 mL
100 mM 0.0278 mL 0.1388 mL 0.2775 mL 0.5551 mL 0.6938 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.
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