2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine 77440-13-2 Formamide, N-(2,6-diamino-1,4-dihydro-4-oxo-5-pyrimidinyl)-N-methyl- Mftahp N(5)-Methyl-N(5)-formyl-2,5,6-triamino-4-hydroxypyrimidine