Synonyms: | Altrenogest Impurity 1;Estra-4,9-dien-3-one, 17-hydroxy-17-(2-propenyl)-, (17β)-;(17β)-17-Hydroxy-17-(2-propenyl)estra-4,9-dien-3-one;(8S,13S,14S,17R)-17-allyl-17-hydroxy-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one |