Abstract
In the title compound, C22H28N2, the dihedral angle between the planes of the phenyl ring and the dihydroquinazoline ring system (r.m.s. deviation = 0.030 angstrom ) is 24.95 (7) degrees and both n-butane chains assume all-trans conformations. In the crystal, N-H center dot center dot center dot N hydrogen bonds link the molecules into C(4) chains propagating in the [001] direction.