3-Hydroxycholest-7-ene-9-carbonitrile 3beta-Hydroxy-5alpha-cholest-7-ene-9alpha-carbonitrile 78806-56-1 BHCEC Cholestane-9-carbonitrile, 3-(acetyloxy)-7-((methylsulfonyl)oxy)-, (3beta,5alpha,7alpha)-