N'-(2-hydroxy-3-methoxybenzylidene)-4-methylbenzenesulfonohydrazide (1) was prepared by the reaction of p-Toluenesulfonyl hydrazide and 2-hydroxy-3-methoxy benzaldehyde (1:1 molar ratio) in ethanol under reflux condition. The crystal structure of the compound was determined by X-ray crystallography. Crystal data for 1 at -100 K: space group C/₂c with: a = 15.807(1) Å, b = 10.457(1) Å, c = 20.779(1) Å, β = 109.68º (1). The final R value is 0.0574 for 3155 independent reflection. The N -H …O hydrogen bond converts the molecules into an infinite chain along [010].