enallylpropymal enallylpropymal enallylpropymal (narconumal) is a barbiturate derivative developed by hoffman la roche in the 1930s. it has sedative and hypnotic effects and is considered to have a moderate abuse potential. enallylpropymalclinical dataother namesenallylpropymalatc codenoneidentifiers iupac name (rs)-1-methyl-5-allyl-5-isopropyl-1,3-diazinane-2,4,6-trione cas number1861-21-8 ypubchem cid95636chemspider86329unii17bt2x209mecha infocard100.015.876 chemical and physical dataformulac11h16n2o3molar mass224.260 g·mol−13d model (jsmol)interactive imagechiralityracemic mixture smiles o=c1nc(=o)n(c)c(=o)c1(c(c)c)cc=c inchi inchi=1s/c11h16n2o3/c1-5-6-11(7(2)3)8(14)12-10(16)13(4)9(11)15/h5,7h,1,6h2,2-4h3,(h,12,14,16)key:axjxurwwufzzkn-uhfffaoysa-n (verify)