[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=C][Branch2][Ring1][Ring1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is the (-)-(7R,8S)-stereoisomer of guaiacylglycerol. It has been isolated from the stems of Sinocalamus affinis. It has a role as a plant metabolite."}]