3d image of epigallocatechin gallate skeletal formula

epigallocatechin gallate egcg epigallocatechin-3-gallate epigallocatechin ester gallic acid catechin polyphenol tea dietary supplements green white black theaflavins thearubigins oxidases apple skin plums onions hazelnuts pecans carob herbal phytochemical phytotherapy plant herb natural pharmacopoeia supplement biological activity bioactive prescription drug food additive nutraceutica dietary antioxidant anti-cancer anti-aging healthy aging alternative medicine herbal molecule molecular formula skeletal structural structure 3d