A novel water-soluble di-Schiff base, N,N’-bis(3-methoxy-5-sulfonatosalicylidene)-1,2- ethylenediamine disodium salt (MSS), was synthesized under both conventional heating and microwave-assisted conditions. Detailed characterization was conducted using various techniques including NMR, HRMS, UV_vis, SEM/EDX, DSC, ATR-FTIR and Raman spectroscopies, accompanied by DFT calculations. The study discusses the enol-im...