[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][O][C][=Branch1][C][=O][C][Cl]"}, {"from": "gpt", "value": "The molecule appears as a colorless to light yellow colored liquid. Insoluble in water and denser than water. Contact may irritate skin, eyes and mucous membranes. Toxic by ingestion, inhalation or skin absorption."}]