[{"from": "human", "value": "Could you provide a description of this molecule? [C][N][=C][Branch1][C][N][N]"}, {"from": "gpt", "value": "The molecule is a guanidine in which one of the amino hydrogens of guanidine itself is substituted by a methyl group. It has a role as a metabolite, an EC 1.14.13.39 (nitric oxide synthase) inhibitor and a uremic toxin. It is a conjugate base of a methylguanidinium."}]