CAS 57-63-6
:Ethinylestradiol
Description:
Ethinylestradiol is a synthetic estrogen, primarily used in hormonal contraceptives and hormone replacement therapy. It is characterized by its potent estrogenic activity, which is significantly stronger than that of natural estradiol. Ethinylestradiol is a white to off-white crystalline powder that is poorly soluble in water but soluble in organic solvents such as ethanol and acetone. Its chemical formula is C20H24O2, and it has a molecular weight of approximately 296.4 g/mol. The compound features an ethynyl group at the C17 position, which enhances its oral bioavailability and metabolic stability compared to natural estrogens. Ethinylestradiol acts by binding to estrogen receptors, influencing various physiological processes, including the regulation of the menstrual cycle and the development of secondary sexual characteristics. Due to its estrogenic effects, it can also have side effects, including an increased risk of thromboembolic events. As a widely used pharmaceutical agent, it is essential to consider its pharmacokinetics, potential interactions, and contraindications in clinical applications.
Formula:C20H24O2
InChI:InChI=1S/C20H24O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,5,7,12,16-18,21-22H,4,6,8-11H2,2H3/t16-,17-,18+,19+,20+/m1/s1
InChI key:InChIKey=BFPYWIDHMRZLRN-SLHNCBLASA-N
SMILES:C[C@@]12[C@]([C@]3([C@](CC1)(C=4C(CC3)=CC(O)=CC4)[H])[H])(CC[C@]2(C#C)O)[H]
Synonyms:- (17Alpha)-17-Ethynylestra-1,3,5(10)-Triene-3,17-Diol
- (17Beta)-17-Ethynylestra-1,3,5(10)-Triene-3,17-Diol
- (17α)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol
- (8Alpha,13Alpha,17Beta)-17-Ethynylestra-1,3,5(10)-Triene-3,17-Diol
- (8Xi,9Xi,14Xi,17Beta)-17-Ethynylestra-1,3,5(10)-Triene-3,17-Diol
- 17-Ethinyl-3,17-estradiol
- 17-Ethinylestradiol
- 17-Ethynyl Estradiol
- 17-Ethynyl-3,17-dihydroxy-1,3,5-oestratriene
- 17-Ethynylestra-1,3,5(10)-Triene-3,17-Diol
- 17-Ethynylestra-1,3,5(10)-triene-3,17β-diol
- 17-Ethynylestradiol
- 17-Nor-17α-pregna-1,3,5-(10)-trien-20-yne-3,17-diol
- 17A-Ethynyl-1,3,5(10)-Estratriene-3,17B-Diol
- 17Alpha-Ethynyl-3,17-Dihydroxy-Delta-(Sup1,3,5)-Estratriene
- 17alpha-Ethynyl-3-hydroxy-1,3,5(10)-estratrien-17beta-ol
- 17α-Ethinyl estradiol (EE2)
- 17α-Ethinyl-1,3,5(10)-estratriene-3,17-diol
- 17α-Ethinyl-17β-estradiol
- 17α-Ethinyl-3,17-dihydroxy-Δ1,3,5-estratriene
- 17α-Ethinyl-3,17-dihydroxy-Δ<sup>1,3,5</sup>-estratriene
- 17α-Ethinylestra-1,3,5(10)-triene-3,17β-diol
- 17α-Ethinylestradiol
- 17α-Ethynylestra-1,3,5(10)-triene-3,17β-diol
- 17α-Ethynylestra-3,17β-diol
- 17α-Ethynylestradiol
- 19-Nor-17Alpha-Pregna-1,3,5(10)-Trien-20-Yne-3,17,Diol
- 19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol
- 19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17β-diol
- 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17alpha)-
- 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17α)-
- 3,17Beta-Dihydroxy-17Alpha-Ethynyl-1,3,5(10)-Estratriene
- Acetylene estradiol
- Amenoron
- Anovlar
- Chee-O-Gen
- Chee-O-Genf
- Diognat-E
- Diogyn-E
- Dyloform
- EE
- Esteed
- Estigyn
- Estinyl
- Eston-E
- Estone
- Estoral
- Estoral (Orion)
- Estorals
- Estra-1,3,5(10)-Triene-3,17Beta-Diol, 17Alpha-Ethynyl-
- Estradiol, 17-ethynyl-
- Estroals
- Ethidol
- Ethinoral
- Ethinyl estradiol
- Ethinyloestradiol
- Ethynyl estradiol
- Ethynylestradiol
- Ethynyloestradiol
- Eticyclin
- Eticyclol
- Etinestrol
- Etinestryl
- Etinilestradiol
- Etinoestryl
- Etistradiol
- Feminone
- Follicoral
- Ginestrene
- Gynofen
- Inestra
- Linoral
- Lynoral
- Menolyn
- Microfollin
- Neo-Estrone
- Novestrol
- Novinet
- Nsc 10973
- Oradiol
- Orestralyn
- Palonyl
- Perovex
- Primogyn
- Primogyn C
- Primogyn C(Or M)
- Primogyn M
- Progynon C
- Prosexol
- Roldiol
- Spanestrin
- See more synonyms
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Ethynylestradiol
CAS:Formula:C20H24O2Purity:>98.0%(T)(HPLC)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:296.41Ethinylestradiol
CAS:EthinylestradiolFormula:C20H24O2Purity:97.0%Color and Shape:Off-WhiteMolecular weight:296.17763Ethinyl Estradiol
CAS:Estrogens and progestinsFormula:C20H24O2Color and Shape:White Light Yellow Crystalline PowderMolecular weight:296.17763Ethynyl estradiol
CAS:Ethynyl estradiol is a semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution,which has high estrogenic potency when administered orally.Formula:C20H24O2Purity:99.06% - 99.75%Color and Shape:Fine White To Creamy White Crystalline PowderMolecular weight:296.40Ethinyl Estradiol
CAS:Formula:C20H24O2Color and Shape:White To Off-White SolidMolecular weight:296.41Ethinylestradiol
CAS:Formula:C20H24O2Purity:≥ 98.0%Color and Shape:White to off-white powderMolecular weight:296.4017a-Ethinylestradiol
CAS:Controlled ProductFormula:C20H24O2Color and Shape:NeatMolecular weight:296.4017a-Ethinylestradiol 100 µg/mL in Acetonitrile
CAS:Controlled ProductFormula:C20H24O2Color and Shape:Single SolutionMolecular weight:296.40GB 31660.2-2019 Antibiotics Mixture 168 30-100 µg/mL in Methanol
CAS:Controlled ProductColor and Shape:MixtureEthynyl Estradiol-2,4,9,6,6,16,16-d7 (Major)
CAS:Controlled Product<p>Applications Isotope labelled Ethynyl Estradiol (E685100), an oral contraceptive (1), is a synthetic steroid with high oral estrogenic potency. Used in estrogen replacement therapy (2). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br>References 1. Koetsawang, S. et al.: Contraception. 1982 March:25(3) p231-2412. Cuttler, L. et al.: J. Endocrinol. Metab. 1985 Jun;60(6):1087-92.<br></p>Formula:C20H17D7O2Color and Shape:White To Off-WhiteMolecular weight:303.45
