19-norpregn-4-en-20-yne-3 beta,17 alpha-diol diacetate mixt. with 3-methoxy-19-norpregna-1,3,5(10) trien-20-yn-17 alpha-ol
19-norpregn-4-en-20-yne-3 beta,17 alpha-diol diacetate mixt. with 3-methoxy-19-norpregna-1,3,5(10) trien-20-yn-17 alpha-ol