英文别名(2S)-N-(2,6-dimethylphenyl)-1-ethylpiperidine-2-carboxamide; N-(2,6-Dimethylphenyl)-1-ethylpiperidine-2-carboxamide,(S); 2-Piperidinecarboxamide,N-(2,6-dimethylphenyl)-1-ethyl-,(2S); 2-Piperidinecarboxamide,N-(2,6-dimethylphenyl)-1-ethyl-,(S); (-)-(2S)-N-(2,6-Dimethylphenyl)-1-ethylpiperidine-2-carboxamide; Ropivacaine hydrochloride monohydrate impurity D [EP]