Cyanidin 3-O-β-rutinoside is a natural colorant found in blackcurrants and other fruits and flowers. It is produced from natural sources (extraction processes). The product will release hydrochloric acid in water. The product is hygroscopic.97% as detected by high- performance liquid chromatography (HPLC) connected to UV /Vis detector at 280nm and 520nm. The rest is impurities of other anthocyanins, flavonoids or polyphenols.