N-Desmethylnefopam is the main Nefopam metabolite .

46868-19-3

C16H17NO

239.31

N-Desmethylnefopam

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years