Synonyms: 1H-1,4-Benzodiazepine, butanedioic acid deriv.;l-Oxazepam hemisuccinate;(R)-Oxazepam hemisuccinate;AC1LD8L2;(-)-RV 1209;RV 1209, (-)-;4-[[(3R)-7-chloro-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]oxy]-4-oxobutanoic acid;68946-52-1;Butanedioic acid, mono(7-chloro-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepin-3-yl) ester, (R)-;butanedioic acid, mono[(3R)-7-chloro-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepin-3-yl] ester;Butanedioic acid, mono[(3R)-7-chloro-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepin-3-yl] ester (9CI)