Active ingredientEthinylestradiol DiacetateCat. No. P-E117-002CAS 13258-68-9
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Active ingredient · Ethinylestradiol family
Pharmaceutical analytical standardEthinylestradiol
Synonyms: Ethynylestradiol, Ethinyloestradiol, Estinyl, Ginestrene, Lynoral, Etinoestryl, Progynon C, Amenoron, Dyloform, Estigyn, Ethidol, Eticyclin, Eticyclol, Etinestrol, Feminone, Inestra, Linoral, Menolyn, Novestrol, Oradiol, Orestralyn, Primogyn, Spanestrin, Esteed, Neo-Estrone, Primogyn C, Primogyn M, Estorals, Ethinoral, Etinestryl, Etistradiol, Follicoral, Ertonyl, Estoral, Palonyl, Perovex, Eston-E, Diogyn E, Nogest-S, Chee-O-Genf, Chee-O-Gen, Ethynyloestradiol, Estoral (Orion), Ylestrol, Ethinyl-oestranol, Diognat-E, Etinilestradiol, Orestrayln, Eticylol, Estradiol, 17-ethynyl-, NSC 10973, Zovia component ethinyl estradiol, Aviane component ethinyl estradiol, Femlyv component ethinyl estradiol, Levora component ethinyl estradiol, Portia component ethinyl estradiol, Twirla component ethinyl estradiol, Vienva component ethinyl estradiol, Volnea component ethinyl estradiol, Xulane component ethinyl estradiol, Bekyree component ethinyl estradiol, Enskyce component ethinyl estradiol, Lessina component ethinyl estradiol, Norinyl component ethinyl estradiol, Pimtrea component ethinyl estradiol, Trivora component ethinyl estradiol, Viorele component ethinyl estradiol, Vyfemla component ethinyl estradiol, Annovera component ethinyl estradiol, Brevicon component ethinyl estradiol, Elifemme component ethinyl estradiol, Enpresse component ethinyl estradiol, Isibloom component ethinyl estradiol, Marlissa component ethinyl estradiol, Nordette component ethinyl estradiol, Setlakin component ethinyl estradiol, Taytulla component ethinyl estradiol, Quartette component ethinyl estradiol, Triphasil component ethinyl estradiol, Estradiol, Ethinyl, Estradiol, Ethynyl, lo minastrin fe component ethinyl estradiol, Minastrin 24 fe component ethinyl estradiol, Ethinyl Oestradiol Effik, Hemihydrate, Ethinyl Estradiol, Amethia, Azurette, Camrese, Rivelsa, Rosyrah, LoJaimiess, Camrese Lo, Microfollin, Etivex, Progynon M, Anovlar, Prosexol, Diprol, Aethinyloestradiolum, Estopherol, Ethinyl E2, Certostat, Etinilestradiolo, Aethinyoestradiol, EE(sub 2), Component of Oracon, Component of Ortrel, Component of Demulen, Ylestol, Component of Ovral
- Cat. No.
- P-E117-001
- CAS
- 57-63-6
- Alternative CAS
- 1050678-65-3 (alternative CAS, same compound)
- Formula
- C20H24O2
- Molecular weight
- 296.41 g/mol
- Category
- Active ingredient (API)
A synthetic oestrogen obtained in 1938 by Hans Herloff Inhoffen and Walter Hohlweg, in medical use since 1943. Since the 1960s it has been the oestrogen found in almost all combined contraceptive pills.
Did you know?Compared with natural oestradiol it resists breakdown by the liver much better, thanks to an ethinyl group with a carbon-carbon triple bond: this is why it works when taken by mouth.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- EthinylestradiolBP 421
- Ethinylestradiol CRSEP E1900000
- Ethinylestradiol for system suitability CRSEP Y0001124
More products in the Ethinylestradiol family
Active ingredientEthinylestradiol DiacetateCat. No. P-E117-002CAS 13258-68-9
Pharmacopoeial impurity(17S)-Ethinylestradiol EP Impurity HCat. No. P-E117-003
Pharmacopoeial impurityEthinylestradiol EP Impurity ACat. No. P-E117-004CAS 4717-38-8
Pharmacopoeial impurityEthinylestradiol EP Impurity BCat. No. P-E117-005CAS 1231-96-5
Pharmacopoeial impurityEthinylestradiol EP Impurity ECat. No. P-E117-006CAS 27521-34-2
Pharmacopoeial impurityEthinylestradiol EP Impurity FCat. No. P-E117-007CAS 56324-28-8
Pharmacopoeial impurityEthinylestradiol EP Impurity GCat. No. P-E117-008CAS 38002-18-5
Pharmacopoeial impurityEthinylestradiol EP Impurity HCat. No. P-E117-009CAS 1350468-76-6Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.