Category
Levonorgestrel
CAS Number
68-22-4
Molecular Formula
C20H26O2
Molecular Weight
298.42
Purity

Not less than-95.0%

Synonym

Norethindrone; Ethinylnortestosterone; Ethynylnortestosterone; 19-Nor-17α-ethynyl-4-androsten-17β-ol-3-one; 17α-Ethynyl-19-nortestosterone; 17α-Ethynyl-19-nortestosterone; 19-Nor-17α-pregn-4-en-20-yn-3-one, 17-hydroxy-; 17α-Ethinylestr-4-en-17β-ol-3-one; (8R,9S,10R,13S,14S,17R)-17-Ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one;

Keywords
Fine Chemicals
Intermediates
Impurities
Pharmaceutical Standards
Levonorgestrel EP Impurity U

Levonorgestrel EP Impurity U is an officially listed impurity in the European Pharmacopoeia (EP) for levonorgestrel. It is utilized as a reference standard in HPLC and other analytical methods for impurity profiling, method validation, and stability testing. Monitoring Impurity U ensures the purity, safety, and regulatory compliance of levonorgestrel active pharmaceutical ingredients and formulations.