Category
Levonorgestrel
CAS Number
NA
Molecular Formula
C21H25NO2
Molecular Weight
323.4
Purity

Not less than-95.0%

Synonym

(13S,14S,17R,E)-13-ethyl-17-ethynyl-17-hydroxy-1,2,4,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one oxime

Keywords
Fine Chemicals
Intermediates
Pharmaceutical Standards
Levonorgestrel Impurity 4

Levonorgestrel Impurity 4 is a designated impurity associated with the synthesis, degradation, or transformation of levonorgestrel. Its structure may represent a minor by-product, intermediate, or modified steroid nucleus depending on the source.