buthalital buthalital buthalital sodium (inn; bayinal, baytinal, thialbutal, transithal, ulbreval), or buthalitone sodium (ban), is a barbiturate derivative which was under development as a short-acting anesthetic. however, development was discontinued, perhaps due to its extremely rapid elimination rate, and buthalital sodium was never marketed. buthalitalclinical dataatc codenoneidentifiers iupac name sodium 5-allyl-5-isobutyl-6-oxo-2-thioxo-1,2,5,6-tetrahydro-4-pyrimidinolate cas number510-90-7 468-65-5 (no salt)pubchem cid3032320chemspider2297324unii810e8n9vugchemblchembl2106716comptox dashboard (epa)dtxsid40965285 chemical and physical dataformulac11h15n2nao2smolar mass262.30 g·mol−13d model (jsmol)interactive image smiles .o=c1nc(=s)/n=c(/)c1(cc(c)c)c\c=c inchi inchi=1s/c11h16n2o2s.na/c1-4-5-11(6-7(2)3)8(14)12-10(16)13-9(11)15;/h4,7h,1,5-6h2,2-3h3,(h2,12,13,14,15,16);/q;+1/p-1key:apswqqyxfmuodf-uhfffaoysa-m