Carbestrol is a synthetic progestogen used in hormonal contraceptives.
564-71-8
17-ethynyl-19-norandrost-5(10)-ene-17,4-diol-3-one;Ethynodiol diacetate;18-Methyl-19-norpregn-4-en-20-yn-17α-ol-3,20-dione
C20H26O4
Warning
Pharmaceutical , Animal Health