3d image of digallic acid skeletal formula

digallic acid polyphenolic compound pistacia lentiscus tannic tannase digalloyl ester m-digallic digallate gallic gallotannins 3d ingredient stuff biological activity healthy aging antioxidant phytochemical molecular matter anti-cancer essential oils phytotherapy herb skeletal herbalism prescription drug alternative medicine pharmacopoeia dietary food additive cell component anti-aging molecule vitamin biology natural herbal pharmacognosy structure bioactive traditional chinese agent substance biomolecule plant model