6,7-Dimethylpterin611-55-2100 % similar Pterin2236-60-453 % similar 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone3977-23-949 % similar Biopterin22150-76-146 % similar 8-Azaguanine134-58-745 % similar 2-Amino-5-bromo-6-methyl-4-pyrimidinol6307-35-345 % similar 8-Mercaptoguanine28128-40-744 % similar Guanine73-40-544 % similar 7-Methylguanine578-76-743 % similar Guanine hydrochloride635-39-240 % similar 4-Hydroxy-2,5,6-triaminopyrimidine1004-75-739 % similar 2,5-Diamino-4,6-dihydroxypyrimidine40769-69-539 % similar Xanthopterin monohydrate5979-01-138 % similar 2-Amino-4-hydroxy-6-methylpyrimidine3977-29-537 % similar Uric acid69-93-237 % similar 2,5-Diamino-4,6-dihydroxypyrimidine hydrochloride56830-58-137 % similar Guanine sulfate10333-92-336 % similar Penciclovir39809-25-135 % similar Acyclovir59277-89-335 % similar Pteroic acid119-24-435 % similar