Category
Levonorgestrel
CAS Number
NA
Molecular Formula
C21H28O2
Molecular Weight
312.5
Purity

Not less than-95.0%

Synonym

(5S,8R,9S,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-2,4,5,6,7,8,9,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Keywords
Impurities
Intermediates
Levonorgestrel Impurity 2.

Levonorgestrel Impurity 2 is a specified impurity listed in pharmacopeial or regulatory documentation, often related to synthesis or degradation of levonorgestrel. Its exact structure depends on the source (e.g., Ph. Eur., USP, or internal specification), but it is typically a structurally related compound such as a stereoisomer, oxidized form, or intermediate.