2-(4-Fluoro-2-nitro­phen­yl)-4-hy­droxy-9-phenyl­sulfonyl-9H-carbazole-3-carbaldehyde

In the title compound, C(25)H(15)FN(2)O(6)S, the carbazole ring system is essentially planar, with a maximum deviation of 0.1534 (16) Å for the C atom connected to the 4-fluoro-2-nitro­phenyl ring. It is almost orthogonal to the phenyl­sulfonyl and nitro­phenyl rings, making dihedral angles of 88.45 (8) and 79.26 (7)°, respectively. The mol­ecular structure is stabilized by O—H⋯O and C—H⋯O hydrogen bonds, which generate three S(6) ring motifs. In the crystal, mol­ecules are linked by two C—H⋯O hydrogen bonds, which generate C(6) and C(9) chains running in the [100] and [010] directions, respectively, so forming a two-dimensional network lying parallel to (001). There are also supra­molecular R (4) (3)(28) graph-set ring motifs enclosed within these networks.