CAS No.: 99-50-3 Formula: C7H6O4
Weight: 154.12000
Synonyms: 4-Carboxy-1,2-dihydroxybenzene; protocatechuate; Benzoic acid,3,4-dihydroxy; protocatechuic acid; 3,4-dihydroxy-benzoic acid;
Protocatechuic acid (PCA) is a dihydroxybenzoic acid, a type of phenolic acid. It is a major metabolite of antioxidant polyphenols found in green tea. It has mixed effects on normal and cancer cells in in vitro and in vivo studies.