In the title compound, C(11)H(15)N(5)O(2), the 1,3,5-triazine ring exhibits a half-chair conformation. An intra-molecular N-H⋯O inter-action occurs. In the crystal structure, mol-ecules are connected by inter-molecular C-H⋯O and N-H⋯N hydrogen bonds, forming a zigzag chain along the b axis.