Category
Levonorgestrel
CAS Number
155683-59-3
Molecular Formula
C21H24O2
Molecular Weight
308.42
Purity

Not less than-95.0%

Synonym

13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5,7,9-trien-20-yn-3-one; (13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,4,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one; Δ5(10),6,8(9)-D-(-)-Norgestrel; Levonorgestrel 5,7,9-triene; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5,7,9-trien-20-yn-3-one

Levonorgestrel EP Impurity W

Levonorgestrel EP Impurity W is an officially recognized impurity in the European Pharmacopoeia (EP) monograph for levonorgestrel. It is used as a reference standard in HPLC and other analytical methods for impurity profiling, method validation, and stability studies. Controlling the levels of Impurity W is important to ensure the quality, safety, and regulatory compliance of levonorgestrel active pharmaceutical ingredients and finished dosage forms.