Astringin is a natural glycoside found in trees. It is produced from natural sources (extraction processes). The product is astringent.
The chemical formula is C20H22O9. The molecular weight is 406.4 g/mol. The product belongs to the stilbenoids, which is a class of natural water-soluble chemicals. The product is easily isomerised upon UV-B radiation.
The product shall be brown in colour, and shall normally be powdered.
The product has a purity >97% as detected by high- performance liquid chromatography (HPLC) connected to UV /Vis detector at 320nm and total absorbance (TIC) 230-600 nm.
The product should be kept in darkness and at low temperatures for storage more than a few days (< -5°C).
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.