“…[33][34][35][36] Despite the huge number of organic compounds available, selecting an effective corrosion inhibitor for a specic system is limited by the specicity of the inhibitors and the wide range of corrosion systems. 19,20,[37][38][39] Scientists are still looking for corrosion inhibitors that are less expensive, non-toxic, and safe for both the environment and personnel. In furtherance of the search, the present work focuses on the synthesis of three novel water-soluble aminoacids benzimidazole derivatives (1-amino-1-(1H-bezo [d] imidazole-2-yl-2-ol, B1), 1-(1H-bezo[d]imidazole-2-yl)-3methylbutan-1-amine, B2, and1-(1H-benzo[d]imidazole-2-yl)-3-(methylthio) propan-1-amine, B3) and investigation of their inhibition effect on the corrosion of carbon steel (Grade X56) in 1 M HCl solution using electrochemical methods in addition to SEM/EDX/mapping spectra studies.…”