4-(3-Nitrophenyl)-1-(2-oxoindolin-3-ylidene)thiosemicarbazide

In the title compound, C15H11N5O3S, intramolecular N—H...N hydrogen bonding forms an S(5) ring motif, whereas N—H...O and C—H...S interactions type complete S(6) ring motifs. The 2-oxoindoline and 3-methoxyphenyl rings are almost planar, with r.m.s. deviations of 0.0178 and 0.0149 Å, respectively, and form a dihedral angle of 33.59 (3)°. In the crystal, molecules are interlinked through the nitro groups in an end-to-end fashion via N—H...O and C—H...O interactions.