Synthesis, spectral properties, biological activity and application of new 4-(benzyloxy)phenol derived azo dyes for polyester fiber dyeing

► Some azo disperse dyes derived from 4-(benzyloxy) phenol were synthesized ► Solvatochromic properties of the dyes in various organic solvents were investigated ► Wash fastness of the dyes on polyester fabrics and their antibacterial activity were studied.