Synonyms: (S)-Thiopentone;4,6(1H,5H)-Pyrimidinedione, 5-ethyldihydro-5-(1-methylbutyl)-2-thioxo-, (S)-;4,6(1H,5H)-Pyrimidinedione, 5-ethyldihydro-5-[(1S)-1-methylbutyl]-2-thioxo- (9CI);Barbituric acid, 5-ethyl-5-(1-methylbutyl)-2-thio-, (S)-(-)- (8CI);S-(-)-Thiopental;S-Thiopental