8-Mercaptoguanine28128-40-7100 % similar 8-Azaguanine134-58-753 % similar Guanine73-40-551 % similar Guanine hydrochloride635-39-248 % similar 1,2,3,7,8,9-Hexahydro-2,8-dithioxo-6H-purin-6-one15986-32-046 % similar Pterin2236-60-445 % similar 6,7-Dimethylpterin611-55-244 % similar Guanine sulfate10333-92-342 % similar 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone3977-23-941 % similar 4-Hydroxy-2,5,6-triaminopyrimidine1004-75-739 % similar 2,5-Diamino-4,6-dihydroxypyrimidine40769-69-539 % similar 2-Amino-5-bromo-6-methyl-4-pyrimidinol6307-35-338 % similar Thioguanine154-42-737 % similar 2,5-Diamino-4,6-dihydroxypyrimidine hydrochloride56830-58-137 % similar 2-Amino-1,3,5-triazine-4,6-dithiol2770-75-436 % similar 3-Amino-5-mercapto-1,2,4-triazole16691-43-335 % similar 2,6-Diamino-5-nitroso-4(3H)-pyrimidinone2387-48-635 % similar Biopterin22150-76-134 % similar 7-Methylguanine578-76-733 % similar Penciclovir39809-25-133 % similar