17-alpha-Butadiynyl-3-beta,17-beta-dihydroxy-5-androsten-17-one 17-alpha-Butadiynylandrost-5-ene-3-beta,17-beta-diol 2010-48-2 ANDROST-5-ENE-3-beta,17-beta-DIOL, 17-alpha-BUTADIYNYL- BRN 2165143