13168-00-8 Benadryl N-oxide hydrochloride Benzdryl hydrochloride N-oxide ETHYLAMINE, N,N-DIMETHYL-2-(DIPHENYLMETHOXY)-, N-OXIDE, HYDROCHLORIDE N,N-Dimethyl-2-(diphenylmethoxy)ethylamine N-oxide hydrochloride N-Oxide of benadryl hydrochloride