2,4-Diaminopyrimidine156-81-0100 % similar 2-Aminoimidazole7720-39-048 % similar 2-Aminopurine452-06-243 % similar 2-Amino-4-methylpyridine695-34-142 % similar 4-Chloro-2-pyridinamine19798-80-241 % similar 2,4-Diaminopyridine461-88-141 % similar 1,3,5-Triazine-2,4-diamine504-08-541 % similar 4-Iodo-2-pyridinamine552331-00-741 % similar 2,4-Diamino-6-chloropyrimidine156-83-239 % similar 4-Pyridinol, 2-amino-, hydrochloride (1:1)1187932-09-737 % similar 4-Ethyl-2-pyridinamine33252-32-337 % similar 2-Thiocytosine333-49-337 % similar Cytosine71-30-737 % similar 2-Aminobenzimidazole934-32-735 % similar 2,6-Diaminopyridine141-86-634 % similar 2-Amino-5-methylpyridine1603-41-434 % similar 4-Amino-2-methylpyridine18437-58-633 % similar 2-O-Methylcytosine3289-47-233 % similar 4-Amino-6-methylpyrimidine3435-28-733 % similar 2-Aminoquinoline580-22-333 % similar