[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][N][C][C][C][C][C][C][C][C][C][C][O][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an omega-hydroxy fatty acid anion resulting from deprotonation of the carboxy group of 21-hydroxyhenicosanoic acid. The major species at pH 7.3. It is a conjugate base of a 21-hydroxyhenicosanoic acid."}]