Category
Levonorgestrel
CAS Number
1260525-53-8
Molecular Formula
C21H26O2
Molecular Weight
310.43
Purity

Not less than-95.0%

Synonym

13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,8(14)-dien-20-yn-3-one; (9R,10R,13S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,9,10,11,12,13,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one; 18,19-Dinorpregna-4,8(14)-dien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17a); (17a)-13-Ethyl-17-hydroxy-18,19-dinorpregna-4,8(14)-dien-20-yn-3-one; ?8(14)-Levonorgestrel; Levonorgestrel-8-ene; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4,8(14)-dien-20-yn-3-one (As per USP Commenting Opening 51(3))

Keywords
Fine Chemicals
Intermediates
Pharmaceutical Standards
Impurities
Levonorgestrel EP Impurity A

Levonorgestrel EP Impurity A is a pharmacopoeial impurity used as a reference standard in analytical method development, impurity profiling, and stability studies of levonorgestrel. It helps ensure the quality and safety of drug substances and products as per EP and ICH guidelines.