3-Methyladenine5142-23-436 % similar 4,6-Diamino-5-nitropyrimidine2164-84-332 % similar Ethyl 4-amino-1H-imidazole-5-carboxylate21190-16-931 % similar 4,5,6-Triaminopyrimidine sulfate49721-45-131 % similar 3H-1,2,3-Triazolo(4,5-d)pyrimidin-7-amine1123-54-231 % similar Furo[2,3-d]pyrimidin-4-amine186454-70-631 % similar 2,6-Dichloropurine5451-40-131 % similar 1H-Pyrrolo[3,2-c]pyridin-4-amine60290-23-531 % similar 5-Aminobenzimidazole934-22-531 % similar 4-Amino-7H-pyrrolo[2,3-d]pyrimidine Hydrogen Sulfate769951-32-830 % similar