[{"from": "human", "value": "Describe this molecule. [C][NH2+1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=Branch1][S][=C][C][=Branch1][#Branch1][=C][Ring1][=Branch1][O][Ring1][=Branch2][C][=Branch1][C][=O][N][F]"}, {"from": "gpt", "value": "The molecule is a secondary ammonium ion resulting from the protonation of the secondary amino group of mefuparib. The major species at pH 7.3. It is a conjugate acid of a mefuparib."}]