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The asymmetric unit of the title compound, C 26 H 12 ClNO 6 , consists of two independent mol­ecules. The central pyran rings and both the 1-benzopyran ring systems are nearly planar in both mol­ecules [r.m.s. deviations of pyan rings = 0.0264 (1) and 0.0326 (1) Å for molecules  A  and  B , respectively; r.m.s. deviations of benzopyran rings = 0.0439 (1) and 0.0105 (1) for molecule  A , 0.0146 (1) and 0.0262 (1) Å for molecule  B ]. In the crystal, the molecules are linked by C—H⋯O, N—H⋯O and C—H⋯π inter­actions.

5-Chlorospiro[indoline-3,7′-6H,7H,8H-pyrano[3,2-c:5,6-c′]di[1]benzopyran]-2,6′,8′-trione