1-(3-Fluoro­phen­yl)-4,4,6-trimethyl-3,4-dihydro­pyrimidine-2(1H)-thione

In the title compound, C13H15FN2S, the dihydro­pyrimidine ring is essentially planar, with a maximum deviation of 0.086 (3) Å from the mean plane of the rest of the ring for the dimethyl­ated C atom. The benzene ring is almost perpendicular to the dihydro­pyrimidine ring, with a dihedral angle of 83.97 (14)°. The crystal packing is characterized by centrosymmetric dimers resulting from pairs of inter­molecular N—H⋯S hydrogen bonds. There are also C—H⋯π inter­actions