3571-53-7 AI3-52642 Delestrec EINECS 222-677-3 ESTRADIOL UNDECYLATE Estra-1,3,5(10)-triene-3,17-diol (17beta)-, 17-undecanoate Estradiol 17-undecanoate Estradiol undecylate [INN] Estradiol undecylate [USAN:INN] Estradioli undecylas [INN-Latin] Estradiolo undecilato [DCIT] Oestradiol-Retard Theramex Oestradioli undecylas Primogyn Depot Undecilato de estradiol [INN-Spanish] Undecylate d'estradiol [INN-French]