Synonyms: 17a-Pregn-5-en-20-yne-3b,17-diol (6CI,7CI,8CI);17-Ethynylandrost-5-ene-3b,17b-diol; 17a-Ethinylandrost-5-ene-3b,17b-diol; 17a-Ethynylandrost-5-ene-3b,17-diol; 17a-Ethynylandrost-5-ene-3b,17b-diol; 17a-Preg-5-ene-20-yn-3b,17-diol; 3b,17b-Dihydroxy-17a-ethynylandrost-5-ene;5-Androsten-17a-ethynyl-3b,17b-diol; Ethynylandrostenediol; NSC 17098; SKF 2856