8-Chloro­methyl-5-(2,5-dioxooxolan-3-yl)-3,3a,4,5-tetra­hydro-1H-naphtho­[1,2-c]furan-1,3-dione

The title compound, C₁₇H₁₃ClO₆, is an asymmetric alicyclic dianhydride containing a chloro­methyl-substituted tetra­hydro­naphthalene moiety. The cyclo­hexene ring in the tetra­hydro­naphthalene moiety exhibits an envelope conformation with the tertiary C atom as the flap The dihedral angle between the two anhydride rings is 79.96 (6)°, while those between the benzene ring and the non-fused and fused anhydride rings are 71.03 (5) and 42.57 (7)°, respectively. In the crystal, mol­ecules are connected by weak C—H...O inter­actions, forming a three-dimensional supramolecular structure.