[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][=C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][=O][C].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of Methaqualone.  As a sedative, hypnotic agent, methaqualone was used for insomnia.  Due to its high risk for abuse, methaqualone was taken off the U.S. market in 1983. (NCI)"}]