1. APIs
  2. Ethinyl Estradiol
  3. Impurities
  4. 16-Oxo-ethinylestradiol

16-Oxo-ethinylestradiol

Structure

MOL SDF CML

Other Names & Identifiers

  • BP Ethinylestradiol Impurity H
  • 3,17-dihydroxy-19-nor-17α-pregna-1,3,5(10)-trien-20-yn-16-one
  • (8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-3,17-bis(oxidanyl)-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-16-one

CASRN

1350468-76-6

Structural Difference from API

The C16 aliphatic carbon is replaced with a carbonyl carbon

library_books

References

  1. British Pharmacopoeia 2017: Ethinylestradiol monograph
    2. (View all citations for this reference)

Source from API

Oxidation

References

PubChem CID

71587986

library_books

References

  1. Online Subscription Database. Reed Elsevier Properties SA. (View all citations for this reference)

Limits

0.2%

References

  1. British Pharmacopoeia 2017: Ethinylestradiol monograph
    2. (View all citations for this reference)