3-(3-Chloro­prop­yl)-7,8-dimeth­oxy-2,3,4,5-tetra­hydro-1H-3-benzazepin-2-one at 125 K

In the title compound, C(15)H(20)ClNO(3), the seven-membered ring adopts a distorted boat–sofa conformation; the methyl­ene C atoms of this ring are coplanar with the benzene ring. Both meth­oxy groups are almost coplanar with the attached benzene ring [C—C—O—C = 6.5 (2) and −13.5 (3)°]. An intra­molecular C—H⋯O hydrogen bond is observed in the mol­ecular structure. In the crystal structure, a C—H⋯π inter­action involving the benzene ring is observed.