Synonyms: 21-Hydroxy-2,2-dimethyl-19-norpregn-4-ene-3,20-dione;RU 24411;AC1L2UCM;AC1Q6OBB;AR-1D7884;RU-24411;19-Norpregn-4-ene-3,20-dione, 21-hydroxy-2,2-dimethyl-;(8R,9S,10R,13S,14S,17S)-17-(2-hydroxyacetyl)-2,2,13-trimethyl-1,6,7,8,9,10,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one