[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][S][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1][C][C][C][C][C][C][C][C][C][C][=O]"}, {"from": "gpt", "value": "The molecule is an oxo fatty acid anion that is the conjugate base of 22-ketodocosanoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a long-chain fatty acid anion, an omega-oxo fatty acid anion and an aldehydic acid anion. It is a conjugate base of a 22-oxodocosanoic acid."}]