hexestrol dipropionate hexestrol dipropionate hexestrol dipropionate (brand name hexanoestrol, retalon oleosum), or hexestrol dipropanoate, is a synthetic, nonsteroidal estrogen of the stilbestrol group related to diethylstilbestrol. it is an ester of hexestrol, and has been known since at least 1931. the drug has been used in the past to inhibit lactation in women. parenteral potencies and durations of nonsteroidal estrogens estrogenformmajor brand name(s)epd (14 days)duration diethylstilbestrol (des)oil solutionmetestrol20 mg1 mg ≈ 2–3 days; 3 mg ≈ 3 days diethylstilbestrol dipropionateoil solutioncyren b12.5–15 mg2.5 mg ≈ 5 days aqueous suspension ?5 mg ? mg = 21–28 days dimestrol (des dimethyl ether)oil solutiondepot-cyren, depot-oestromon, retalon retard20–40 mg ? fosfestrol (des diphosphate)aaqueous solutionhonvan ?<1 day dienestrol diacetateaqueous suspensionfarmacyrol-kristallsuspension50 mg ? hexestrol dipropionateoil solutionhormoestrol, retalon oleosum25 mg ? hexestrol diphosphateaaqueous solutioncytostesin, pharmestrin, retalon aquosum ?very short note: all by intramuscular injection unless otherwise noted. footnotes: a = by intravenous injection. sources: see template. hexestrol dipropionateclinical dataother nameshexestrol 4,4'-dipropionateidentifiers iupac name phenyl] propanoate cas number4825-53-0 ypubchem cid107342chemspider96605unii87wc4icv8ochemblchembl1577591chemical and physical dataformulac24h30o4molar mass382.500 g·mol−13d model (jsmol)interactive image smiles ccc(c1=cc=c(c=c1)oc(=o)cc)c(cc)c2=cc=c(c=c2)oc(=o)cc inchi inchi=1s/c24h30o4/c1-5-21(17-9-13-19(14-10-17)27-23(25)7-3)22(6-2)18-11-15-20(16-12-18)28-24(26)8-4/h9-16,21-22h,5-8h2,1-4h3key:hzlymvnjkhjfro-uhfffaoysa-n