Used extensively in organic synthesis to introduce the cinnamoyl group into various compounds. It is a key intermediate in the production of pharmaceuticals, particularly for drugs targeting inflammation and microbial infections. In the fragrance and flavor industry, it is employed to create aromatic compounds with a cinnamon-like scent. Additionally, it serves as a building block in the synthesis of UV-absorbing materials for coatings and polymers. Its reactivity with amines and alcohols makes it valuable for producing esters and amides in research and industrial applications.