11,17-Dihydroxy-17-(1-propynyl)-androsta-1,4,6-trien-3-one,(11beta,17beta) 11,17-Dihydroxy-17-pregnane-1,4,6-triene-20-yn-21-methyl-3-one 74915-58-5 Androsta-1,4,6-trien-3-one, 11,17-dihydroxy-17-(1-propynyl)-, (11beta,17beta)- RU 26988 RU-26988