[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][C][C@H1][Branch1][Branch1][C][C][Ring1][=Branch1][C][=Branch1][C][=C][C]"}, {"from": "gpt", "value": "The molecule is an optically active form of limonene having (4S)-configuration. It is an enantiomer of a (4R)-limonene."}]