Synonyms: Duloxetine Hydrochloride Imp. C (EP), 4-[3-(Methylamino)-1-(2-thienyl)propyl]-1-naphthalenol, Para-Naphthol duloxetine, 4-[(1RS)-3-(Methylamino)-1-(thiophen-2-yl)propyl]naphthalen-1-ol,1-Naphthalenol, 4-[3-(methylamino)-1-(2-thienyl)propyl]-