[{"from": "human", "value": "Describe this molecule. [C][C][Branch2][Ring1][C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Branch1][Branch1][C][Ring1][Branch2][=O][C][C][=C][C][C][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is only found in individuals that have used or taken this drug. It is a barbiturate that is effective as a hypnotic and sedative. Hexobarbital binds at a distinct binding site associated with a Cl- ionopore at the GABA-A receptor, increasing the duration of time for which the Cl- ionopore is open. The post-synaptic inhibitory effect of GABA in the thalamus is, therefore, prolonged."}]