title: The separation of C19-16-unsaturated steroids from C21 and other C19-steroids by two-dimensional thin-layer chromatography.
mesh_terms: D006907:17-alpha-Hydroxypregnenolone / Q000032:analysis; D000728:Androgens / Q000032:analysis*; D000731:Androstanes / Q000032:analysis; D000738:Androsterone / Q000032:analysis; D001345:Autoradiography; D002855:Chromatography, Thin Layer; D003687:Dehydroepiandrosterone / Q000032:analysis; D004967:Estrogens / Q000032:analysis; D005043:Etiocholanolone / Q000032:analysis; D006908:Hydroxyprogesterones / Q000032:analysis; D008722:Methods; D011284:Pregnenolone / Q000032:analysis; D011372:Progestins / Q000032:analysis*; D013739:Testosterone / Q000032:analysis
chemical_list: D000728:Androgens; D000731:Androstanes; D004967:Estrogens; D006908:Hydroxyprogesterones; D011372:Progestins; D006907:17-alpha-Hydroxypregnenolone; D013739:Testosterone; D003687:Dehydroepiandrosterone; D011284:Pregnenolone; D005043:Etiocholanolone; D000738:Androsterone