(S)-Duloxetine (S)-N-Methyl-gamma-(1-naphthalenyloxy)-2-thiophenepropanamine 116539-59-4 2-Thiophenepropanamine, N-methyl-gamma-(1-naphthalenyloxy)-, (S)- 2-Thiophenepropanamine, N-methyl-gamma-(1-naphthalenyloxy)-, (gammaS)- Cymbalta Duloxetine LY 248686