Moxonidine Impurity C;Moxonidine Impurity 3 (Moxonidine EP Impurity C);4(3H)-Pyrimidinone, 5-[(4,5-dihydro-1H-imidazol-2-yl)amino]-6-methoxy-2-methyl-;Moxonidine EP Impurity C (4-Hydroxymoxonidine);Moxonidine EP impurity C;MFFANMLJBOSKIX-UHFFFAOYSA-N