[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][C][C][C][/C][=C][/C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][N+1][Branch1][C][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an O-acyl-D-carnitine in which the acyl group is specified as (11E)-octadecenoyl. It has a role as a human xenobiotic metabolite. It is an O-octadecenoylcarnitine and an O-acyl-D-carnitine. It is functionally related to a trans-vaccenic acid."}]