EFV57: Efavirenz IP Impurity G

(S)-6-Chloro-4-[2-(2-methylcyclopropyl)eth-1-yn-1-yl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one ; 

C15H11ClF3NO2 ;
Mol. Wt.: 329.70 ;