butobarbital butobarbital butobarbital, also called butobarbitone or butethal, soneryl, and neonal, is a hypnotic drug which is a barbiturate derivative. it was developed by poulenc brothers (now part of rhône poulenc) in 1921. butobarbitalclinical datatrade namessonerylahfs/drugs.cominternational drug namesroutes ofadministrationby mouthatc coden05ca03 (who) legal statuslegal status au: s8 (controlled drug) ca: schedule iv de: anlage ii (authorized trade only, not prescriptible) pharmacokinetic datametabolismliverexcretionkidneyidentifiers iupac name 5-butyl-5-ethyl-1,3-diazinane-2,4,6-trione cas number77-28-1 ypubchem cid6473drugbankdb01353 ychemspider6229 yuniiohz8qaw6yckeggd02618 ychemblchembl404422 ycomptox dashboard (epa)dtxsid70227808 echa infocard100.000.928 chemical and physical dataformulac10h16n2o3molar mass212.249 g·mol−13d model (jsmol)interactive image smiles o=c1nc(=o)nc(=o)c1(cccc)cc inchi inchi=1s/c10h16n2o3/c1-3-5-6-10(4-2)7(13)11-9(15)12-8(10)14/h3-6h2,1-2h3,(h2,11,12,13,14,15) ykey:stdbaqmtjlumfw-uhfffaoysa-n y (verify)