Raspberry ketone is a ketone that is 4-phenylbutan-2-one in which the phenyl ring is substituted at position 4 by a hydroxy group. It is found in a variety of fruits including raspberries, blackberries and cranberries, and is used in perfumery and cosmetics. It has a role as a flavouring agent, a fragrance, a metabolite, a hepatoprotective agent, a cosmetic and an androgen antagonist. It is a member of phenols and a methyl ketone.