10-beta-Chloro-17-beta-hydroxy-delta(sup 1,4)-estradiene-3-one 10-beta-Chloro-17-beta-hydroxyestra-1,4-dien-3-one 10-beta-Chloro-delta(sup 1,4)-estradiene-17-beta-ol-3-one Estra-1,4-dien-3-one, 10-beta-chloro-17-beta-hydroxy- KG2920000