Corilagin is an ellagitannin with a hexahydroxydiphenoyl group bridging over the 3-O and 6-O of the glucose core. It has a role as an antihypertensive agent, an EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor, a non-steroidal anti-inflammatory drug and an antioxidant. It is an ellagitannin and a gallate ester.