2-NAPHTHALENEETHANIMIDAMIDE, N,N'-DIMETHYL-, MONOHYDROCHLORIDE 57166-13-9 DL 588 DL-588 N,N'-Dimethyl-2-naphthaleneacetamidine monohydrochloride N,N'-Dimethyl-2-naphthaleneethanimidamide hydrochloride Napactadine Napactadine hydrochloride Napactadine hydrochloride [USAN]