. "1-(3,17-Dihydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethanone (17-hydroxypregnenolone)" . "18 (17-hydroxypregnenolone)" . . . .