Cinnamic acid, potassium salt, is widely used in the food industry as a preservative due to its antimicrobial properties. It helps extend the shelf life of various food products by inhibiting the growth of bacteria and fungi. In cosmetics, it is utilized as a stabilizer and preservative in skincare formulations to prevent spoilage and maintain product integrity. Additionally, it finds application in pharmaceuticals as an intermediate in the synthesis of certain drugs, particularly those with anti-inflammatory and antimicrobial effects. Its role in organic synthesis also includes being a precursor for the production of other valuable chemical compounds.