(+)-Taxifolin | CAS:17654-26-1 | Manufacturer ChemFaces

(+)-Taxifolin

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Description:

(+)-Taxifolin is an inhibitor of aggregation of the 42-residue amyloid β-protein, it has preventive effects against Alzheimer's disease-like pathogenesis in vivo. It is also a weak inhibitor of cytochrome b5 reduction (IC50=9.8μM).

Targets:

Beta Amyloid

In vitro:

Toxicology. 2013 Jun 7;308:34-40.

In vitro effects of myricetin, morin, apigenin, (+)-taxifolin, (+)-catechin, (-)-epicatechin, naringenin and naringin on cytochrome b5 reduction by purified NADH-cytochrome b5 reductase.[Pubmed: 23567315 ]

The microsomal NADH-dependent electron transport system consisting of cytochrome b5 reductase and cytochrome b5 participates in a number of physiologically important processes including lipid metabolism as well as is involved in the metabolism of various drug and xenobiotics.
METHODS AND RESULTS:
In the present study, we assessed the inhibitory effects of eight dietary flavonoids representing five distinct chemical classes on cytochrome b5 reduction by purified cytochrome b5 reductase. From the flavonoids tested, myricetin was the most potent in inhibiting cytochrome b5 reduction with an IC50 value of 0.35μM. Myricetin inhibited b5 reductase noncompetitively with a Ki of 0.21μM with respect to cofactor NADH, and exhibited a non-linear relationship indicating non-Michaelis-Menten kinetic binding with respect to cytochrome b5. In contrast to the potent inhibitory activity of myricetin, (+)-Taxifolin was found to be a weak inhibitor (IC50=9.8μM). The remaining flavonoids were inactive within the concentration range tested (1-50μM). Analysis of structure-activity data suggested that simultaneous presence of three OH groups in ring B is a primary structural determinant for a potent enzyme inhibition.
CONCLUSIONS:
Our results suggest that inhibition of the activity of this system by myricetin or myricetin containing diets may influence the metabolism of therapeutic drugs as well as detoxification of xenobiotics.

(+)-Taxifolin Description

Source:	The herbs of Silybum marianum (L.) Gaertn.
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.

Product Name	(+)-Taxifolin
Price:	$70 / 20mg
CAS No.:	17654-26-1
Catalog No.:	CFN99183
Molecular Formula:	C₁₅H₁₂O₇
Molecular Weight:	304.25 g/mol
Purity:	>=98%
Type of Compound:	Flavonoids
Physical Desc.:	Powder
Source:	The herbs of Silybum marianum (L.) Gaertn.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download:	COA MSDS SDF Manual
Similar structural:	Comparison
Guestbook:

	1 mg	5 mg	10 mg	20 mg	25 mg
1 mM	3.2868 mL	16.4339 mL	32.8677 mL	65.7354 mL	82.1693 mL
5 mM	0.6574 mL	3.2868 mL	6.5735 mL	13.1471 mL	16.4339 mL
10 mM	0.3287 mL	1.6434 mL	3.2868 mL	6.5735 mL	8.2169 mL
50 mM	0.0657 mL	0.3287 mL	0.6574 mL	1.3147 mL	1.6434 mL
100 mM	0.0329 mL	0.1643 mL	0.3287 mL	0.6574 mL	0.8217 mL

CFN98030	(-)-Maackiain	2035-15-6	284.3	C₁₆H₁₂O₅
CFN97712	Cannabispirol	64052-90-0	248.32	C₁₅H₂₀O₃
CFN60230	GDC-0879	905281-76-7	334.37	C₁₉H₁₈N₄O₂
CFN95640	Neobudofficide	194602-91-0	738.7	C₃₄H₄₂O₁₈