Natural Antioxidant High Purity Chlorogenic Acids for Health Supplement CAS 327-97-9 Product Overview Chlorogenic acid is an ester formed from caffeic acid and quinic acid. It belongs to the class of phenolic compounds and is one of the major naturally occurring bioactive constituents found in various medicinal plants. This compound is widely distributed across the plant kingdom and can be efficiently isolated from botanical materials such as Eucommia ulmoides (Du-Zhong) and