4,4'-Methylenediphenol

4,4'-Methylenediphenol is a high purity product from Gastrodia rhizome with antioxidant activities. (In Vitro) :Gastrodia rhizome, a dried and steamed tuber of Gastrodia elata Blume (Orchidaceae), has been traditionally used in Korea, China and Japan for the treatment of neurological and nervous disorders such as headaches, dizziness, vertigo and convulsive illnesses. The ethyl acetate and water extracts of G. elata stimulated plasmin activity.