The chemical Cinnamic acid has a designated molecular formula of C9H8O2 and a molecular weight of 148.161 g/mol. Synonyms may include: 4-09-00-02002 (Beilstein Handbook Reference), AI3-23709, BRN 1905952, trans-beta-Carboxystyrene, CCRIS 3190, trans-Cinnamic acid, (E)-Cinnamic acid, EINECS 205-398-1, NSC 44010, trans-3-Phenylacrylic acid, (E)-3-Phenyl-2-propenoic acid, trans-3-Phenyl-2-propenoic acid (ChemID).