1,4-Benzenediamine, N,N-dimethyl-, monohydrochloride 2052-46-2 4-Amino-N,N-dimethylaniline monohydrochloride 99-98-9 EINECS 218-146-0 N,N-Dimethyl-1,4-benzenediamine monohydrochloride N,N-Dimethyl-p-phenylenediamine monohydrochloride N,N-Dimethylbenzene-1,4-diamine hydrochloride NSC 47696 p-Amino-N,N-dimethylaniline monohydrochloride p-Phenylenediamine, N,N-dimethyl-, monohydrochloride