Empirical Formula (Hill Notation): C17H26N2O · HCl · H2O, Molecular Weight: 328.88, Synonym: (S)-N-(2,6-dimethylphenyl)-1-propylpiperidine-2-carboxamide hydrochloride monohydrate, (2S)-N-(2,6-dimethylphenyl)-1-propyl-2-piperidinecarboxamide hydrochloride monohydrate, Naropin hydrochloride monohydrate, Ropivacaine hydrochloride monohydrate.