英文别名1,1-Dimethylbiguanide hydrochloride impurity B; Metformin EP Impurity B (Monoguanyl Melamine); GuanylMelamine; Guanidine, N-(4-amino-3,6-dihydro-6-imino-1,3,5-triazin-2-yl)-; (4,6-diamino-1,3,5-triazin-2-yl)guanidine; (4,6-Diamino-s-triazin-2-yl)guanidine; (Aminoiminomethyl)-1,3,5-triazine-2,4,6-triamine; 2-(4,6-diamino-1,3,5-triazin-2-yl)guanidine; Metformin Impurity 2 
