In the title benzimidazole derivative, C18H18N2O3, the methoxyphenyl ring is
twisted with respect to the benzimidazole ring system, making a dihedral angle
of 28.81 (5). The pendant ethyl chain has an extended conformation.Within the
imidazole ring, the C—N single bonds have a partial double-bond character. In
the crystal, molecules are linked by weak C—H interactions and –
stacking [the centroid-to-centroid distances being 3.6468 (7), 3.7279 (7) and
3.7481 (7) A ° ].