[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule appears as a clear colorless to light yellow liquid with a pungent odor. Insoluble in water and denser than water. Hence sinks in water. Contact may severely irritate skin, eyes and mucous membranes."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][P][=Branch1][C][=O][Branch1][#Branch2][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl]"}]