aprobarbital aprobarbital aprobarbital (or aprobarbitone), sold as oramon, somnifaine, and allonal, is a barbiturate derivative invented in the 1920s by ernst preiswerk. it has sedative, hypnotic and anticonvulsant properties, and was used primarily for the treatment of insomnia. aprobarbital was never as widely used as more common barbiturate derivatives such as phenobarbital and is now rarely prescribed as it has been replaced by newer drugs with a better safety margin. aprobarbitalclinical dataother namesaprobarbitone, oramon, allylpropymal, alurate, 5-isopropyl- 5-allylbarbituric acidahfs/drugs.cominternational drug namesatc coden05ca05 (who) legal statuslegal status ca: schedule iv identifiers iupac name 5-propan-2-yl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione cas number77-02-1 ypubchem cid6464drugbankdb01352 ychemspider6221 yuniiq0ykg9l6rfkeggd00698 ychebichebi:2791 ychemblchembl7863 ycomptox dashboard (epa)dtxsid8022616 echa infocard100.000.908 chemical and physical dataformulac10h14n2o3molar mass210.233 g·mol−13d model (jsmol)interactive image smiles o=c1nc(=o)nc(=o)c1(c(c)c)c\c=c inchi inchi=1s/c10h14n2o3/c1-4-5-10(6(2)3)7(13)11-9(15)12-8(10)14/h4,6h,1,5h2,2-3h3,(h2,11,12,13,14,15) ykey:uorjnbvjvrlxmq-uhfffaoysa-n y (verify)