[{"from": "human", "value": "Describe this molecule. [C][C][C][Branch1][C][C][C][=Branch1][C][=O][O][C][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 a C5-acylcarnitine having 2-methylbutyryl as the acyl substituent. It has a role as a human metabolite. It is functionally related to a 2-methylbutyric acid."}]