eterobarb eterobarb eterobarb (antilon) is a barbiturate derivative. it has mainly anticonvulsant action with less sedative effects than the closely related compound phenobarbital. it saw reasonable success in clinical trials, but is not in widespread medical use. eterobarbclinical dataroutes ofadministrationoralatc codenoneidentifiers iupac name 5-ethyl-1,3-bis(methoxymethyl)-5-phenyl-1,3-diazinane-2,4,6-trione cas number27511-99-5 ypubchem cid33925chemspider31271 nunii432si047gakeggd04077 ycomptox dashboard (epa)dtxsid9045710 chemical and physical dataformulac16h20n2o5molar mass320.345 g·mol−13d model (jsmol)interactive image smiles ccc1(c(=o)n(c(=o)n(c1=o)coc)coc)c2=cc=cc=c2 inchi inchi=1s/c16h20n2o5/c1-4-16(12-8-6-5-7-9-12)13(19)17(10-22-2)15(21)18(11-23-3)14(16)20/h5-9h,4,10-11h2,1-3h3 nkey:dacoqfzgglcxma-uhfffaoysa-n n ny (what is this?) (verify) synthesis eterobarb can be synthesized by reacting phenobarbital with chloromethyl methyl ether in presence of a base. eterobarb synthesis