1,4-Benzenediamine, N,N,N',N'-tetramethyl-, dihydrochloride 637-01-4 EINECS 211-274-8 N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride N,N,N',N'-Tetramethyl-para-phenylenediamine dihydrochloride NSC 36730 Wurster's reagent dihydrochloride p-Phenylenediamine, N,N,N',N'-tetramethyl-, dihydrochloride (8CI)