In this work, we are reporting nineteen hydrazone-Schiff base derivatives (2a-2l and 3a-3g), containing flurbiprofen drug nucleus.The synthesized products were structurally elucidated through 1H, 13C-NMR and HR-ESI-MS spectroscopic techniques and finally tested for in vitro anti-cancer activity.Among the synthetic series, 2f, 2g, 3g, 3b, and 2e attributed the higher inhibitory potential against the breast cancer cell line (MDA-MB-231) having IC50 values of 21.0 ± 0.4, 21.8 ± 0.2, 27.1 ± 0.3, 28.8 ± 0.3, and 29.6 ± 0.3 μM resp.However, the remaining derivatives attributed good to less active.DFT was used to calculate frontier MO of (2a-h, j-l, and 3a-d) including HOMO which concentrated on the substituents aromatic ring, and LUMO focused over flurbiprofen and hydrazide fragments, that indicate the charge transfer from mol. to biol. media.The reactivity indexes suggested the most active 2f (IC50 = 21.0 ± 0.4 μM) and 2g (IC50 = 21.8 ± 0.2 μM) showed higher indexes reactivity namely σ, χ, and ω than lowest active 2g; this relation inversely for Eg, η, and IP. 2a-l had more electrophilic character and higher acceptance ability for biol. targets than compounds (3a-g).The MEP map indicated the electron d. distribution of 2a-l was more dispersed than that of 3a-g, indicating potential biol. activities and are chem. reactive zone suitable for drug action.The docking study contributed to the anal. of cytotoxicity for investigated compounds