thiobutabarbital thiobutabarbital thiobutabarbital (inactin, brevinarcon) is a short-acting barbiturate derivative invented in the 1950s. it has sedative, anticonvulsant and hypnotic effects, and is still used in veterinary medicine for induction in surgical anaesthesia. thiobutabarbitalclinical dataother namesthiobutabarbital, inactin, brevinarcon, 5-sec-butyl-5-ethyl-2-thiobarbituric acidatc codenoneidentifiers iupac name 5-sec-butyl-5-ethyl-2-thioxodihydropyrimidine-4,6(1h,5h)-dione cas number2095-57-0 npubchem cid3032373chemspider2297366 yunii2n0251u7jhecha infocard100.016.600 chemical and physical dataformulac10h16n2o2smolar mass228.31 g·mol−13d model (jsmol)interactive image smiles o=c1nc(=s)nc(=o)c1(c(c)cc)cc inchi inchi=1s/c10h16n2o2s/c1-4-6(3)10(5-2)7(13)11-9(15)12-8(10)14/h6h,4-5h2,1-3h3,(h2,11,12,13,14,15) ykey:idelnedbpwkhgk-uhfffaoysa-n y ny (what is this?) (verify) stereochemistry thiobutabarbital contains a stereocenter and consists of two enantiomers. this is a racemate, ie a 1: 1 mixture of ( r ) - and the ( s ) - form: enantiomers of thiobutabarbital (r)-form (s)-form