metabolism of [ 3h ] pregnenolone to 17 alpha-hydroxypregnenolone and [ 3h ] progesterone to 17 alpha-hydroxyprogesterone occurred at low rates ( 1-7 % ) , suggesting the presence of c21 steroid 17 alpha-hydroxylase in skunk cl .
C0373704
pregnenolone
C0376260
17 alpha-hydroxypregnenolone