“…As for film-forming CIs, they work through physisorption, chemisorption, or physisorption–chemisorption processes on a metallic surface, thus decreasing its interaction with the aggressive medium . Different research works have reported that organic CIs have proven to be effective for this purpose due to the presence of heteroatoms with high electron density (N, S, O, P) with unpaired and π electrons that interact, mainly, with the vacant Fe d orbital. − Likewise, it has been found that CIs with heterocyclic aromatic groups such as imidazole, pyridine, pyrrolidone, and thiazole, among others, have turned out to be efficient against corrosion because of their polar functional groups like primary amines (NH 2 ), secondary amines (NH), and carbonyl groups (CO) whose double bonds improve the interaction with the metallic surface …”