1. APIs
  2. Norgestimate
  3. Impurities

Norgestimate Impurities

Name Structure CASRN Other Names and Identifiers
(E)-Norelgestromin structure
  • BP Norgestimate Impurity C
  • (3E)-13β-ethyl-3-(hydroxyimino)-18,19-dinor-17α-pregn-4-en-20-yn-17-ol
Levonorgestrel structure 797-63-7
  • BP Norgestimate Impurity B
(Z)-Norelgestromin structure
  • BP Norgestimate Impurity D
  • (3Z)-13β-ethyl-3-(hydroxyimino)-18,19-dinor-17α-pregn-4-en-20-yn-17-ol
Levonorgestrel Acetate structure
  • BP Norgestimate Impurity A
  • 13β-ethyl-3-oxo-18,19-dinor-17α-pregn-4-en-20-yn-17-yl acetate