Chlorogenic Acid. 3-Caffeoylquinic Acid . 3 Caffeoylquinic Acid . Acid, 3-Caffeoylquinic . Acid, Chlorogenic . A naturally occurring phenolic acid which is a carcinogenic inhibitor. It has also been shown to prevent paraquat-induced oxidative stress in rats. (From J Chromatogr A 1996;741(2):223-31; Biosci Biotechnol Biochem 1996;60(5):765-68). . 0.65