4,5-Diaminopyrimidine13754-19-3100 % similar 4-Amino-5-bromopyrimidine1439-10-752 % similar 2-Chloro-4,5-pyrimidinediamine14631-08-442 % similar 5-(4-Chlorophenyl)-4-pyrimidinamine35202-25-642 % similar 4,5,6-Pyrimidinetriamine118-70-741 % similar 6-Chloro-4,5-pyrimidinediamine4316-98-738 % similar 5-Chloro-1H-imidazole15965-31-834 % similar 4-Bromoimidazole2302-25-234 % similar 4-Methylimidazole822-36-634 % similar Histamine51-45-633 % similar 4,6-Diamino-5-nitropyrimidine2164-84-333 % similar 1,3,5-Triazin-2-amine4122-04-732 % similar 4-Aminopyrimidine591-54-832 % similar 4,5,6-Triaminopyrimidine sulfate49721-45-132 % similar 6-Chloro-5-methoxy-4-pyrimidinamine5018-41-732 % similar Imidazole-4-carboxaldehyde3034-50-231 % similar 5-(Trifluoromethyl)-1H-imidazole33468-69-831 % similar 1H-Imidazole-5-methanol822-55-931 % similar Histamine dihydrochloride56-92-831 % similar 4-Iodopyridin-3-amine105752-11-230 % similar