PRODUCT DEscriptION
Quercetin 4’-O-β-glucopyranoside is a natural compound found in onions, fruits and flowers. It is produced from onions by extraction processes.

CHEMICAL DEscriptION
The chemical formula is C₂₁H₂₀O₁₂. The molecular weight is 464.4 g/mol. The product belongs to the flavonols that is a class of natural chemicals belonging to the flavonoids.  It is highly water-soluble and is easily degraded by hydrolysis and /or hydrogenation at temperatures >40°C.

PHYSICAL CHARACTERISTICS
The product shall be yellow in colour, and shall normally be powdered.

COMPOSITION STATEMENT
The product has a purity >97% as detected by high- performance liquid chromatography (HPLC) connected to UV /Vis detector at 280nm and 350nm. The rest is impurities of other flavonoids or polyphenols.

STORAGE REQUIREMENTS
The product should be kept in darkness and at low temperatures for storage more than a few days (< -5°C).

RESPONSIBILITY
This product is intended for research in chemical laboratories. only qualified individuals shall be considered treating this product. The purchaser should recognize that the supplier of this product under no circumstances is responsible for the applications of the product in the field of human or animal consumption or tests related to human or animal health. The supplier is not responsible for this product as part of drugs, cosmetics, food additives, products for domestic use or veterinary products. The purchaser is responsible for the use and storage of this product as soon as he receives the product.