[{"from": "human", "value": "Please give me some details about this molecule. [C][C][O][C][=Branch1][C][=O][C][Br]"}, {"from": "gpt", "value": "The molecule is an organobromide compound. In World War I, ethyl bromoacetate was used as a lachrymatory agent and tear gas agent for chemical warfare. It was also later used as a riot control agent. Today it is mostly used in organic synthesis as an alkylating agent. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, 1081)"}]