N′-[(2Z)-3-Allyl-4-oxo-1,3-thia­zolidin-2-yl­idene]-5-fluoro-3-phenyl-1H-indole-2-carbohydrazide

In the title compound, C(21)H(17)FN(4)O(2)S, the planar indole fused-ring [maximum deviation 0.009 (1) Å] makes dihedral angles of 54.75 (9) and 14.90 (9)°, respectively, with the phenyl ring and the dihydro­thia­zolyl ring. The –CH2CH=CH(2) substituent is disordered over two positions in a 0.51 (1):0.49 (1) ratio. An intra­molecular N—H⋯S hydrogen bond generates an S(5) ring motif. The two independent mol­ecules are linked into a dimer by two N—H⋯O hydrogen bonds, forming an R (2) (2)(10) ring motif. The crystal structure features inter­molecular C—H⋯π and π–π stacking [centroid–centroid distance = 3.679 (1) Å] inter­actions. C—H⋯O and C—H⋯F inter­actions are also present.