Name Dronedarone hydrochloride
Molecular Structure
Molecular Formula C31H44N2O5S.HCl
Molecular Weight 593.22
CAS Registry Number 141625-93-6
Use:cardiac arrhythmia 
Appearance White powder
Melting Point 140°C∼145°C
Identification HPLC/UV
Related Substances Total impurities: NMT 1.0%
Maximum single impurity: NMT 0.5%
Loss on Drying
(Dry it at 80°C in vacuum till a constant weight) NMT 1.0%
Residue on Ignition NMT 0.1%
Heavy Metal NMT 20ppm
Assay(on dried basis, by titration ) NLT 98.5%