1 Chemical products for use in industry; chemical products derived from quercetin for the manufacture of pharmaceutical products, food supplements, cosmetics and foodstuffs; antioxidants for use in the manufacture of food supplements; antioxidants for use in the manufacture of pharmaceutical products; biological preparations for industry; plant extracts for industrial purposes; plant extracts for use in manufacture of food; plant extracts for the food industry; plant extracts for use in manufacture of pharmaceutical substances; flavonoids for industrial use [phenolic compounds]