[{"from": "human", "value": "Describe this molecule. [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 an O-acylcarnitine having acetyl as the acyl substituent. It has a role as a human metabolite. It is functionally related to an acetic acid. It is a conjugate base of an O-acetylcarnitinium."}]