Abstract

The title compound, C14H11NO3, was isolated from the roots of Clausena wallichii. The carbazole ring system is approx­imately planar (r.m.s. deviation = 0.039 Å) and the dihedral angle between the two benzene rings is 4.63 (7)°. An intra­molecular O—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol­ecules are linked into a zigzag network extending parallel to the ac plane by O—H⋯N and N—H⋯O hydrogen bonds.

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