Migration of tritium to C-24 during the metabolism of 24-methylene[23,23, 25-3H3]cholesterol by the insect Tenebrio molitor

24-Methylene[23,23,25-3H3]cholesterol was transformed by Tenebrio molitor larvae into [23,23,24-3H3]cholesterol; the tritium label distribution in the cholesterol isolated from the larvae compared with that in the administered precursor is in agreement with the migration of hydrogen from C-25 to C-24 during the dealkylation process