EFV48: Efavirenz bis-Ethoxycarbonyl Impurity

Efavirenz USP Impurity N ;

Efavirenz Amino Alcohol bis-Ethoxycarbonyl Impurity ; 

(S)-Ethyl 4-chloro-2-[4-cyclopropyl-2-(ethoxycarbonyloxy)-1,1,1-trifluorobut-3-yn-2-yl]phenylcarbamate ;

C19H19ClF3NO5 ;
Mol. Wt.: 433.81 ;