“…X-Ray crystal structures have been reported for a 17 -estradiol 3-benzoate, 23 a fluorinated D-homoestrone 10, 24 17 -benzyl-17 -hydroxy-16-hydroxyimino-3-methoxyestra-1,3,5(10)triene, 25 derivatives, [27][28][29] cholesteryl 3 -toluene-p-sulfonate, 30 a fungal ergostane 12, 31 and some cholestane derivatives [32][33][34] including a 3-stannylcholest-5-ene. 35 An investigation of the gas phase photoelectron spectrum of dehydroepiandrosterone has shown 36 that the lowest energy ionization event corresponds to the -ionization energy closely followed by the carbonyl lone pair ionization.…”