Name 

Dapoxetine hydrochloride 

Synonyms 

(1S)-N,N-Dimethyl-3-naphthalen-1-yloxy-1-phenyl-propan-1-amine hydrochloride 

Molecular Structure 

Molecular Formula 

C21H23NO.HCl 

Molecular Weight 

341.88 

CAS Registry Number 

129938-20-1 

Properties 

Specifications 

Appearance

White or off-White crystalline powder

Identification

IR

Loss on drying

≤2.0%

Melting point

175°C to 185°C

Specific rotation

+128°±3°

Chromatographic impurities

A. Single impurity

≤0.2%

B. Total impurities

≤0.5%

Assay

98.0% to 102.0%