Yellow crystal, a natural phenolic acid compounds in plants, is a kind of antioxidant, inhibit the synthesis of leukotriene (leukotriene involves the regulation of immunity, inflammation and allergies), inhibit the oxidation of LDL induced by Cu2.
Caffeic acid is a ubiquitous phenolic compound derived primarily from hydrolysis of chlorogenic acid in plant biomass. The standard industrial process involves extraction and purification via crystallization or chromatography. Molecular formula: C9H8O4; CAS No.: 331-39-5.
Storage requires sealed containers in cool, dry environments below 25°C. Direct contact with eyes or skin should be avoided; safety goggles and gloves are mandatory during handling. Clinical use is restricted to topical applications due to potential systemic toxicity at high doses.