[{"from": "human", "value": "What can you tell me about this molecule? [C][C][/C][=C][\\C][C@@H1][Branch2][Ring1][#Branch2][/C][=C][/C][=C][Branch1][=Branch2][C][=Branch1][C][=O][C][C][Ring1][=Branch1][C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of prostaglandin B3, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a prostaglandin B3."}]