Flavogallonic acid dilactone is a hydrolysable tannin that can be found in Rhynchosia volubilis seeds, in Shorea laevifolia, in Anogeissus leiocarpus and Terminalia avicennoides. See also Flavogallonic acid References Hydrolysable tannins Trihydroxybenzoic acids Lactones Catechols Pyrogallols