[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a methyl-branched fatty acid that is pentadecanoic acid substituted by a methyl group at position 14. It is a biomarker for rheumatoid arthritis. It has a role as a biomarker and a mammalian metabolite. It is a branched-chain saturated fatty acid, a methyl-branched fatty acid, a long-chain fatty acid and a fatty acid 16:0. It is functionally related to a pentadecanoic acid. It is a conjugate acid of a 14-methylpentadecanoate."}]