8-Azaguanine134-58-7100 % similar 8-Mercaptoguanine28128-40-753 % similar Guanine73-40-553 % similar Guanine hydrochloride635-39-249 % similar Pterin2236-60-446 % similar 6,7-Dimethylpterin611-55-245 % similar Guanine sulfate10333-92-343 % similar 3H-1,2,3-Triazolo[4,5-D]pyrimidine-5,7(4H,6H)-dione1468-26-442 % similar 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone3977-23-942 % similar 4-Hydroxy-2,5,6-triaminopyrimidine1004-75-741 % similar 2,5-Diamino-4,6-dihydroxypyrimidine40769-69-541 % similar 2-Amino-5-bromo-6-methyl-4-pyrimidinol6307-35-338 % similar 2,5-Diamino-4,6-dihydroxypyrimidine hydrochloride56830-58-138 % similar 2,6-Diamino-5-nitroso-4(3H)-pyrimidinone2387-48-636 % similar Biopterin22150-76-135 % similar 3,6-Dihydro-7H-1,2,3-triazolo[4,5-D]pyrimidin-7-one2683-90-134 % similar 7-Methylguanine578-76-734 % similar 2,5,6-Triaminopyrimidin-4-ol sulfuric acid salt35011-47-333 % similar 2,5,6-Triamino-4-hydroxypyrimidine sulfate39267-74-833 % similar Penciclovir39809-25-133 % similar