[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][Branch2][Ring1][C][C][=C][Branch1][Ring2][N][Ring1][Branch1][N][=C][Branch1][=Branch1][N][C][Ring1][#Branch1][=O][N][C][=Branch1][C][=NH2+1][N]"}, {"from": "gpt", "value": "The molecule is a carboxamidinium ion that is the conjugate acid of 7-formamidino-7-deazaguanine, arising from selective protonation of the imino nitrogen; major species at pH 7.3. It is a conjugate acid of a 7-formamidino-7-deazaguanine."}]