The　title　compound,　5-ethoxycarbonyl-4-[(4-methoxycarbonyl)phenyl]-6-methyl-3,4-dihydropyrimidin-2(1H)-ones　(1),　was　synthesized　from　the　one-pot,　three-component　condensation　reactions　and　characterized　by　FTIR,　H-1　NMR,　HRMS,　and　single　crystal　X-ray　diffraction.　The　compound　(1)　crystallizes　in　a　triclinic　system,　space　group　P-1　with　a　=　6.1874(12),　b　=　7.5715(15),　c　=　17.369(4)angstrom,　alpha　=　80.24(3),　beta　=　81.15(3),　gamma　=　76.93(3)degrees,　and　Z　=　2.　The　molecules　are　linked　by　hydrogen　bonds　N-H　center　dot　center　dot　center　dot　O　and　C-H　center　dot　center　dot　center　dot　O　to　generate　a　2D　network.　In　addition,　UV-visible　and　fluorescence　spectral　measurements　prove　that　it　shows　positive　solvatochromic　effect　as　the　solvent　polarity　was　increased.