CAS 10080-68-9: 2-Butenoic acid, 4-hydroxy-, ethyl ester, (E)-

(E)-4-Hydroxycrotonoic Acid Ethyl Ester is a chemical compound that belongs to the group of ethyl esters. It is an organic compound with the molecular formula CH3CO2CH2COC(=O)CH3. The compound can be synthesized by reacting benzoyl chloride with ethyl alcohol in the presence of sodium ethoxide and then hydrolyzing the product using hydrochloric acid. This reaction mechanism has been shown to produce (E)-4-hydroxycrotonoic acid ethyl ester, which is an intermediate for some other compounds.