[{"from": "human", "value": "Provide a description of this molecule. [C][C][=N][C][=C][Branch1][Branch2][C][=Branch1][Ring2][=N][Ring1][=Branch1][N][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is the ammonium ion formed from 4-amino-5-aminomethyl-2-methylpyrimidine by protonation of the primary amino group; principle microspecies at pH 7.3. It is a conjugate acid of a 4-amino-5-aminomethyl-2-methylpyrimidine."}]