1. APIs
  2. Ethynodiol Diacetate
  3. Impurities
  4. 17α-Ethinyl-estr-4-ene-3β,17-diol-3-acetate-17-(3-oxo-butanoate)

17α-Ethinyl-estr-4-ene-3β,17-diol-3-acetate-17-(3-oxo-butanoate)

Structure

Notes

Either the precursor or degradation product of the (E)- and (Z)- trimerized acetyl impurities.

References

  1. Babják, M.; Balogh, G.; Gazdag, M.; Görög, S. Estimation of Impurity Profiles of Drugs and Related Materials: Part XXI. HPLC/UV/MS Study of the Impurity Profile of Ethynodiol Diacetate. J. Pharm. Biomed. Anal. 2002, 29 (6), 1153–1157. (View all citations for this reference)