[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch2][Ring2][=Branch1][C][C][C][C@@H1][Branch2][Ring1][=C][/C][=C][/C@H1][C@@H1][Branch2][Ring1][=Branch1][C][C@H1][C@@H1][Ring1][Branch1][C][/C][=Branch1][#Branch2][=C][/C][C][C][C][=Branch1][C][=O][O-1][/O][Ring1][N][O][O][O]"}, {"from": "gpt", "value": "The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of 19-hydroxyprostaglandin I2, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is functionally related to a prostaglandin I2(1-). It is a conjugate base of a 19-hydroxyprostaglandin I2."}]