diethylstilbestrol disulfate diethylstilbestrol disulfate diethylstilbestrol disulfate (brand names hydroestryl, idroestril; former developmental code name m.g. 137) is a synthetic, nonsteroidal estrogen of the stilbestrol group and an ester of diethylstilbestrol (des) that was formerly marketed but is now no longer available. it is described as an antineoplastic agent. diethylstilbestrol disulfateclinical datatrade nameshydroestryl, idroestrilother namesm.g. 137identifiers iupac name phenyl] hydrogen sulfate cas number316-23-4pubchem cid3034417chemspider2298875uniitcg918143becha infocard100.005.690 chemical and physical dataformulac18h20o8s2molar mass428.47 g·mol−13d model (jsmol)interactive image smiles cc/c(=c(/cc)\c1=cc=c(c=c1)os(=o)(=o)o)/c2=cc=c(c=c2)os(=o)(=o)o inchi inchi=1s/c18h20o8s2/c1-3-17(13-5-9-15(10-6-13)25-27(19,20)21)18(4-2)14-7-11-16(12-8-14)26-28(22,23)24/h5-12h,3-4h2,1-2h3,(h,19,20,21)(h,22,23,24)/b18-17+key:jqfxybuubrtzsr-islyrvaysa-n