Caffeic acid, also known as 3, 4-dihydroxyl cinnamic acid, belongs to both organic acids, also belongs to polyphenol compounds, widely exists in nature, such as light leaves, buckwheat, wild carrots, tobacco, coffee and so on all contain caffeic acid. Caffeic acid contains phenolic hydroxyl groups, which can be substituted, oxidized and chromogenic reactions. Caffeic acid also contains carboxyl groups, which are acidic and can be neutralized and esterified. It also contains carbon-carbon double bonds, which can be added, polymerized and oxidized.
Caffeic acid is an important raw material and intermediate in medicine, which has a wide range of antibacterial and antioxidant effects. At present, the clinical application of caffeic acid is mainly used to stop bleeding in surgical and gynecological diseases, increase white blood cells and platelets, improve the function of coagulation factors, and shrink and increase microvessels. In medical treatment, caffeic acid can be obtained by oral or intraperitoneal injection. The use method and amount of caffeic acid need to be used under the guidance of a regular doctor. The method and dose will naturally vary according to the actual situation.