Guanine hydrochloride635-39-2100 % similar Guanine73-40-590 % similar Guanine sulfate10333-92-372 % similar Thioguanine154-42-755 % similar 6-O-Methylguanine20535-83-555 % similar 8-Azaguanine134-58-749 % similar Pterin2236-60-449 % similar 8-Mercaptoguanine28128-40-748 % similar 2,5-Diamino-4,6-dihydroxypyrimidine hydrochloride56830-58-144 % similar O6-Benzylguanine19916-73-544 % similar 6,7-Dimethylpterin611-55-240 % similar Xanthine69-89-640 % similar Lomeguatrib192441-08-038 % similar 2-Thioxanthine2487-40-338 % similar 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone3977-23-938 % similar 2,4-Diamino-6-hydroxypyrimidine56-06-438 % similar Biopterin22150-76-137 % similar 7-Methylguanine578-76-737 % similar 4-Hydroxy-2,5,6-triaminopyrimidine1004-75-737 % similar 2,5-Diamino-4,6-dihydroxypyrimidine40769-69-537 % similar