BVR04: Brivaracetam EP Impurity D

Brivaracetam USP RC D ;    

(S)-2-[(R)-2-Oxo-4-propylpyrrolidin-1-yl]butanoic acid ;    

CAS # 943986-67-2 ;

C11H19NO3 ;
Mol. Wt.: 213.27 ;