3-(4-Chloro­phenyl)-2H-benz­[b][1,4]­oxazine

The title compound, C₁₄H₁₀ClNO, is a nitro­gen derivative closely related to natural 3',7-epoxy-8,4'-oxy­neolignans, which are of interest because of their cytotoxic activity. Centrosymmetric hydrogen bonding occurs between pairs of mol­ecules.