Norgestrel
C21H28O2
312.45
18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)-(±)-.
(±)-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one [6533-00-2]
18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)-(±)-.
(±)-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one [6533-00-2]
» Norgestrel contains not less than 98.0 percent and not more than 102.0 percent of C21H28O2, calculated on the dried basis.