[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=NH2+1][N]"}, {"from": "gpt", "value": "The molecule is a carboxamidinium ion obtained by protonation of the amidino group of benzamidine. Major species at pH 7.3. It is a conjugate acid of a benzamidine."}]