Description

Quercetin-3-o-Glucuronide is a major bioactive metabolite of the flavonoid quercetin, formed via phase II metabolism. This compound is valued for its enhanced bioavailability and stability compared to its aglycone, making it a critical reference standard and active ingredient for research and development. It is primarily sought by manufacturers and researchers in the pharmaceutical, nutraceutical, and cosmeceutical industries for applications in antioxidant, anti-inflammatory, and metabolic health studies.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and quality control of quercetin-based drugs and supplements in analytical laboratories.
• Nutraceutical Formulation: Incorporated into dietary supplements for its potential antioxidant and anti-inflammatory bioactivity.
• Cosmeceutical Ingredient: Applied in advanced skincare formulations targeting oxidative stress and skin aging.
• Biomedical Research: Serves as a key metabolite in pharmacokinetic, metabolic, and pharmacological studies of flavonoid compounds.
• Functional Food & Beverage: Used in the fortification of health-promoting food and drink products.
• Analytical Method Development: Essential for developing and validating HPLC, LC-MS, and other chromatographic methods in quality control labs.

Basic Information

Product Name	Quercetin-3-o-Glucuronide
CAS No.	22688-79-5
Molecular Formula	C21H18O13
Molecular Weight	478.36 g/mol
Synonyms	Quercetin 3-O-β-D-Glucuronide; Quercetin 3-Glucuronide; 3-O-Glucuronylquercetin; Quercetin-3-β-D-Glucuronopyranoside; Quercetin 3-O-Glucuronopyranoside; 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4-oxo-4H-chromen-3-yl β-D-Glucopyranosiduronic Acid; Q3GA
EINECS	Contact for details

Quality Control

Our Quercetin-3-o-Glucuronide is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and MS, to ensure it meets high-purity standards suitable for research and formulation. Certificates of Analysis (COA) with detailed chromatographic data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥95.0%
Loss on Drying	≤5.0%
Residue on Ignition	≤1.0%
Heavy Metals	≤20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.