Description

Quercetin 4'-o-Galactoside is a specific flavonoid glycoside, a derivative of the well-known antioxidant quercetin. This compound is valued for its enhanced bioavailability and targeted biological activity compared to its aglycone form. It is primarily sought by manufacturers in the nutraceutical, pharmaceutical, and cosmetic industries for formulating high-potency antioxidant and anti-inflammatory products.

Application

• Nutraceutical & Dietary Supplements: A key active ingredient in formulations targeting oxidative stress, cardiovascular health, and immune support.
• Pharmaceutical Research: Used as a reference standard and as a lead compound in drug discovery for its anti-inflammatory and neuroprotective properties.
• Cosmetic & Skincare Products: Incorporated into serums and creams for its antioxidant benefits, helping to protect skin from environmental damage and signs of aging.
• Functional Food & Beverages: Used to fortify products with a stable, bioavailable source of flavonoid antioxidants.
• Biochemical Research: Employed in studies investigating flavonoid metabolism, glycosidase interactions, and cellular signaling pathways.

Basic Information

Product Name	Quercetin 4'-o-Galactoside
CAS No.	381728-34-3
Molecular Formula	C21H20O12
Molecular Weight	464.38 g/mol
Synonyms	Quercetin 4'-O-β-D-galactopyranoside; Quercetin 4'-Galactoside; 3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-one 4'-β-D-galactoside; Hyperoside (Note: Hyperoside is often Quercetin 3-O-galactoside, but 4'-O isomer is distinct); Quercetin 4'-O-galactopyranoside; Quercetin 4'-β-D-galactoside; 4'-O-Galactosylquercetin
EINECS	Contact for details

Quality Control

Our Quercetin 4'-o-Galactoside is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for research and commercial use. Certificates of Analysis (COA) detailing all quality parameters 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). This product is light-sensitive and easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤10 ppm
Residual Solvents	Meets ICH guidelines
Microbiological Analysis	Meets standard limits for non-sterile substances

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