Anilinium chloride

Anilinium chloride is the organic compound with the formula. It is a white solid and the chloride salt of anilinium, which is the conjugate acid of aniline,. Anilinium chloride is produced by treatment of aniline with hydrochloric acid. The cation consists of a phenyl ring attached to a tetrahedral ammonium center. The C-N bond elongates from 1.41 Å in aniline to 1.474 Å in anilinium.

Uses

Anilinium chloride is used as a precursor to diphenylamine by heating with aniline:
It reacts with formaldehyde to give methylenedianiline, a precursor to commercial polymers.