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The title compound, C 13 H 9 FN 2 O, a potential neuroprotective agent, consists of an indolinone and a pyrrolyl unit [dihedral angle between the ring planes = 4.9 (1)°]. An intra­molecular hydrogen bond between the carbonyl O atom and the NH group of pyrrole correlates with the  Z  arrangement of the substituents at the C=C bond. In the crystal, inversion dimers occur, linked by pairs of N—H⋯O bonds.

(Z)-5-Fluoro-3-[(1H-pyrrol-2-yl)methylene]indolin-2-one