1,2-dimethyl-1,4,5,6-tetrahydropyrimidine;1,2-Dimethyl-1,4,5,6-tetrahydropyrimidine; 2,3-Dimethyl-3,4,5,6-tetrahydropyrimidine;
1,2-dimethyl-1,4,5,6-tetrahydropyrimidine;1,2-Dimethyl-1,4,5,6-tetrahydropyrimidine; 2,3-Dimethyl-3,4,5,6-tetrahydropyrimidine;