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8(14)-???????????

8(14)-??????????? ??? ???

???(??):: 8(14)-Dehydro Norgestrel;8(14)-Dehydro Norgestrel (>80%);rac-Levonorgestrel EP Impurity A;Norgestrel 8(14)-Dehydro Impurity;(+/-)-Levonorgestrel EP Impurity A;(+/-) Levonorgestrel EP Impurity A;Levonorgestrel Impurity 1（Levonorgestrel EP Impurity A）;rac-Levonorgestrel EP Impurity A (Norgestrel EP Impurity A);13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,8(14)-dien-20-yn-3-one;(+/-)-(17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-4,8(14)-dien-20-yn-3-one

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8(14)-??????????? ??

8(14)-Dehydro Norgestrel (Levonorgestrel EP Impurity A) is a Norgestrel (N689500) impurity.

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18,19-Dinorpregn-4-en-20-yn-3-one-2,2,4,6,6,10-d6, 13-ethyl-17-hydroxy-, (17α)- 13-Ethyl-10,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one Levonorgestrel-3,17-diacetate Levonorgestrel Impurity 16 6-Oxo D-(-)-Norgestrel (±)-13-ethyl-3-methoxygona-2,5(10)-dien-17beta-ol 13-Ethyl-3-methoxygona-1,3,5(10),8-tetraen-17beta-ol 13-ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol 18,19-Dinorpregna-4,6,8(14)-trien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)- 6β-Hydroxy Norgestrel Levonorgestrel EP Impurity I 13-Ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one 5α-Dihydrolevonorgestrel (-)-NORGESTREL 98 6-Hydroxy-levonorgestrel 18-Methyl Nandrolone Δ5(10),6,8(9)-D-(-)-Norgestrel (±)-13-ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol