3-Amino-5,6-dimethyl-1,2,4-triazine17584-12-2100 % similar 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone3977-23-941 % similar 2-Amino-5-bromo-6-methyl-4-pyrimidinol6307-35-337 % similar 6,7-Dimethylpterin611-55-232 % similar 2-Amino-4-methoxy-6-methyl-1,3,5-triazine1668-54-832 % similar Acetoguanamine542-02-931 % similar