الفهرس 
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Abstract
This work describe Synthesizing of some new Functional disperse dyes based on Aryl-azo pyridone moiety through coupling of diverse Diazonium salts with 1-ethyl-4-methyl-2,6-dioxopiperidine-3-carbonitrile.The structure of these disperses dyes were established based on elemental analysis, IR, 1HNMR and Mass spectra. All of this disperse dyes were applied on polyester fabric and the color assessment for these dyes was measured. Also, Properties for the dyed fabrics like sublimation, acidic and alkaline perspiration, washing, rubbing and light fastness showed good dyeing performance. The antimicrobial of the synthesized dyes are evaluated and showed good results against some types of gram(+)and gram(-) bacteria. Also The synthesized analogues were probed as cytotoxic agents toward four dissimilar cell lines, in which the results displayed persuasive activities relative to the results of antibiotic standards. In addition, to their antioxidant activity of the synthesized dyesthat are evaluated using ABTS•+ method.