tetronal tetronal tetronal is a sedative-hypnotic and anesthetic drug with gabaergic actions. it is not as effective as trional. tetronallegal statuslegal status us: schedule iii identifiers iupac name 3,3-bis(ethylsulfonyl)pentane cas number2217-59-6 ypubchem cid75197chemspider67743unii5xg2x0ow34comptox dashboard (epa)dtxsid10176705 chemical and physical dataformulac9h20o4s2molar mass256.38 g·mol−13d model (jsmol)interactive image smiles ccc(cc)(s(=o)(=o)cc)s(=o)(=o)cc inchi inchi=1s/c9h20o4s2/c1-5-9(6-2,14(10,11)7-3)15(12,13)8-4/h5-8h2,1-4h3key:vtzyvplhcqbwsp-uhfffaoysa-n (verify) history tetronal was introduced by eugen baumann and alfred kast in 1888.