[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a straight-chain saturated fatty acid anion that is the conjugate base of tetracosanoic acid (lignoceric acid), formed by deprotonation of the carboxy group. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite. It is a very long-chain fatty acid anion, a straight-chain saturated fatty acid anion, a fatty acid anion 24:0 and a 2-saturated fatty acid anion. It is a conjugate base of a tetracosanoic acid."}]