2,2'-Dithiobis[ethylamine] dihydrochloride 56-17-7 Bis(2-aminoethyl) disulfide dihydrochloride Cystamin dihydrochloride Cystamine dihydrochloride Cystamine hydrochloride Ethanamine, 2,2'-dithiobis-, dihydrochloride Ethylamine, 2,2'-dithiobis-, dihydrochloride NSC39322 Usaf cb-34 WLN: Z2SS2Z