Isoquercetin

Isoquercetin (Quercetin 3-glucoside) is a naturally occurring polyphenol that has antioxidant, anti-proliferative, and anti-inflammatory properties. Isoquercetin alleviates ethanol-induced hepatotoxicity, oxidative stress, and inflammatory responses via the Nrf2/ARE antioxidant signaling pathway. Isoquercetin regulates the expression of nitric oxide synthase 2 (NO2) via modulating the nuclear factor-κB (NF-κB) transcription regulation system. Isoquercetin has high bioavailability and low toxicity, is a promising candidate agent to prevent birth defects in diabetic pregnancies.

Product information

CAS Number: 482-35-9

Molecular Weight: 464.38

Formula: C21H20O12

Synonym:

Quercetin 3-glucoside

Chemical Name: 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4H-chromen-4-one

Smiles: OC[C@H]1O[C@@H](OC2C(=O)C3C(=CC(O)=CC=3O)OC=2C2C=C(O)C(O)=CC=2)[C@H](O)[C@@H](O)[C@@H]1O

InChiKey: OVSQVDMCBVZWGM-QSOFNFLRSA-N

InChi: InChI=1S/C21H20O12/c22-6-13-15(27)17(29)18(30)21(32-13)33-20-16(28)14-11(26)4-8(23)5-12(14)31-19(20)7-1-2-9(24)10(25)3-7/h1-5,13,15,17-18,21-27,29-30H,6H2/t13-,15-,17+,18-,21+/m1/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 19.23 mg/mL (41.41 mM; Need ultrasonic).

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Isoquercetin (Quercetin 3-glucoside; 5-20 μM; 24 hours) substantially reduces ethanol-induced cytotoxicity , protects hepatic cells against ethanol-stimulated liver injury. Isoquercetin (10 μM; pre-treat 1 hour) dramatically downregulates the levels of ethanol-induced iNOS protein expression in HepG2 cells.

References:

1. Lee S, et al. Relative protective activities of quercetin, quercetin-3-glucoside, and rutin in alcohol-induced liver injury. J Food Biochem. 2019 Aug 5:e13002.
2. Tan C, et al. Modulation of nuclear factor-κB signaling and reduction of neural tube defects by quercetin-3-glucoside in embryos of diabetic mice. Am J Obstet Gynecol. 2018 Aug;219(2):197.e1-197.e8.

Products are for research use only. Not for human use.