Synonyms:
nsc26104 ; 4-pregnen-16alpha,17alpha-diol-3,20-dione 16,17-acetonide ; progesterone 16,17-acetonide ; 16.alpha.,17-dihydroxypregn-4-ene-3,20-dione cyclic acetal with acetone ; algestone acetonide ; 16.alpha.,17.alpha.-isopropylidenedioxyprogesterone ; 16.alpha.,17-(isopropylidenedioxy)progesterone ; pregn-4-ene-3,20-dione, 16.alpha.,17-(isopropylidenedioxy)- ; 16a,17a-isopropylidenedioxyprogesterone ; alphasone acetonide