(4S)-6-Chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-benzo[d][1,3]oxazin-2-one 154598-52-4 154635-17-3 (RACEMATE) 2H-3,1-Benzoxazin-2-one, 6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-, (4S)- AIDS-032934 AIDS032934 DMP-266 EFV Efavirenz L-743,726 Strocin (TM) Sustiva (TM)