Ethyl 3-bromopropionate is the organobromine compound with the formula BrCH<sub>2</sub>CH<sub>2</sub>CO<sub>2</sub>C<sub>2</sub>H<sub>5</sub>. It is a colorless liquid and an alkylating agent. It is prepared by the esterification of 3-bromopropionic acid. Alternatively, it can be prepared by hydrobromination of ethyl acrylate, a reaction that proceeds in an anti-Markovnikov sense.