In the title compound, C(11)H(14)ClNO, the herbicide propachlor, there are significant differences between the three N-C bond lengths [N-C(carbon-yl) = 1.354 (3) Å, N-C(phen-yl) = 1.444 (2) Å and N-C(isoprop-yl) = 1.496 (3) Å], indicating the presence of π delocalization involving the carbonyl group. The N atom lies 0.074 (2) Å from the plane defined by the the three bonded C atoms.