4,4'-(Tetramethylenedioxy)dianiline dihydrochloride 6245-50-7 75795-90-3 ANILINE, 4,4'-(TETRAMETHYLENEDIOXY)DI-, DIHYDROCHLORIDE Benzenamine, 4,4'-(1,4-butanediylbis(oxy))bis-, dihydrochloride M & B 2467