Aniline (CAS 62-53-3)

Aniline, a simple aromatic amine with the formula C6H5NH2, is a clear to slightly yellow liquid that is integral in the chemical industry for the synthesis of dyes, plastics, and various industrial chemicals. Originating from benzene, aniline features a highly reactive amino group attached to a phenyl ring, which is key to its use in electrophilic substitution reactions including acylation and halogenation, allowing for the creation of a wide range of derivative compounds. In materials science research, aniline is particularly valued for its capability to polymerize into polyaniline, a conductive polymer whose electrical properties can be finely adjusted through chemical doping processes. These properties make it suitable for applications in anti-static coatings, rechargeable battery components, and electronic sensors. Furthermore, aniline′s utility extends to the production of methylene diphenyl diisocyanate (MDI), a critical precursor in manufacturing polyurethanes used in everything from foams to adhesives. Its versatility is further demonstrated in its role in creating rubber processing chemicals and antioxidants, highlighting aniline′s broad applicability across multiple domains of industrial chemistry and materials science.