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What is it about?
In the title compound, C9H7FN4OS, the molecules are almost planar, with an r.m.s. deviation of 0.047 (3) Å from the mean plane defined by the non-H atoms and a maximum deviation of 0.123 (2) Å for the amine N atom. The torsion angle for the N-N-C-S unit is 176.57 (19)°. In the crystal, molecules are linked into inversion dimers via pairs of N-H...F hydrogen bonds and, additionally, through N-H...O and N-H...S hydrogen bonds, building a two-dimensional hydrogen-bond network parallel to the (103) plane. An intramolecular N-H...O interaction is also observed.