[{"from": "human", "value": "Describe this molecule. [C][C][C][Branch1][Ring2][/C][=C][/Cl][Branch1][Ring1][C][#C][O]"}, {"from": "gpt", "value": "The molecule is propargyl alcohol in which the methylene hydrogens are substituted by ethyl and 2-chlorovinyl groups. A hypnotic and sedative, it is used for treatment of insomnia in some cases where an intolerance or allergy to more commonly used drugs exists. It has a role as a sedative. It is a tertiary alcohol, an organochlorine compound, an enyne and a terminal acetylenic compound."}]