Levonorgestrel EP Impurity B

左炔诺孕酮EP杂质B

Also known as: 13-Ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one, 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-5(10)-en-20-yn-3-one, 13-Ethyl-17-hydroxy-18,19-dinor-17a-pregn-5(10)-en-20-yn-3-one (Levonorgestrel Impurity B), 17-Ethinyl-17-hydroxy-18-methylestr-5(10)-en-3-one, 13-Ethyl-17a-ethynyl-17-hydroxygon-5(10)-en-3-one, EP Levonorgestrel Impurity B, Levonorgestrel impurity B, (8R,9S,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one

Levonorgestrel EP Impurity B (CAS 19914-67-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H29O2 and a molecular weight of 313.45400 g/mol. It is also known as 13-Ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one, 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-5(10)-en-20-yn-3-one and 13-Ethyl-17-hydroxy-18,19-dinor-17a-pregn-5(10)-en-20-yn-3-one (Levonorgestrel Impurity B). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

19914-67-1

Jingsj CID

J-1968310-8

Molecular Formula

C₂₁H₂₉O₂

Chinese Name

左炔诺孕酮EP杂质B

Molecular Weight

313.45400 g/mol

Category

Ketones

Last updated

8/21/2026