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CAS 57-63-6

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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
  • See more synonyms
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Found 24 products.
  • Ethynylestradiol

    CAS:
    Formula:C20H24O2
    Purity:>98.0%(T)(HPLC)
    Color and Shape:White to Light yellow to Light orange powder to crystal
    Molecular weight:296.41

    Ref: 3B-E0037

    1g
    66.00€
    5g
    179.00€
  • Ethinylestradiol

    CAS:
    Color and Shape:Neat

    Ref: 61-FOR0123.00

    10mg
    306.00€
  • Ethinylestradiol

    CAS:
    Ethinylestradiol
    Formula:C20H24O2
    Purity:97.0%
    Color and Shape:Off-White
    Molecular weight:296.17763

    Ref: 47-421

    100mg
    242.00€
  • ETHINYLESTRADIOL FOR SYSTEM SUITABILITY CRS

    CAS:
    ETHINYLESTRADIOL FOR SYSTEM SUITABILITY CRS

    Ref: 41-Y0001124

    1.01mg
    115.00€
  • ETHINYLESTRADIOL CRS

    CAS:
    ETHINYLESTRADIOL CRS
    Color and Shape:Added Modified

    Ref: 41-E1900000

    210mg
    115.00€
  • ETHINYLESTRADIOL RS

    CAS:
    ETHINYLESTRADIOL RS

    Ref: 41-ICRS0305

    200mg
    102.00€
  • Ethinyl Estradiol

    CAS:
    Estrogens and progestins
    Formula:C20H24O2
    Color and Shape:White Light Yellow Crystalline Powder
    Molecular weight:296.17763
  • Ethynyl estradiol

    CAS:
    Ethynyl estradiol is a semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution,which has high estrogenic potency when administered orally.
    Formula:C20H24O2
    Purity:99.06% - 99.75%
    Color and Shape:Fine White To Creamy White Crystalline Powder
    Molecular weight:296.40
  • Ethinyl Estradiol

    CAS:
    Formula:C20H24O2
    Color and Shape:White To Off-White Solid
    Molecular weight:296.41

    Ref: 4Z-E-099

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Ethynyl estradiol

    CAS:
    Ethynyl estradiol
    Purity:≥98%
    Molecular weight:296.4g/mol

    Ref: 54-BUP16737

    500mg
    51.00€
  • Ethynyl estradiol

    CAS:
    Ethynyl estradiol
    Purity:98%
    Molecular weight:296.4g/mol

    Ref: 54-OR1030255

    1g
    36.00€
    5g
    85.00€
    25g
    285.00€
    100g
    1,036.00€
    500g
    4,296.00€
    250mg
    32.00€
  • Ethinylestradiol

    CAS:
    Formula:C20H24O2
    Purity:≥ 98.0%
    Color and Shape:White to off-white powder
    Molecular weight:296.40

    Ref: 7W-GP3324

    1g
    79.00€
    5g
    175.00€
  • Ethinylestradiol-d9

    CAS:
    Formula:C20H15D9O2
    Molecular weight:305.46

    Ref: 4Z-E-4611

    5mg
    To inquire
    10mg
    4,854.00€
    25mg
    8,979.00€
    50mg
    14,560.00€
    100mg
    To inquire
  • 17a-Ethinylestradiol

    Controlled Product
    CAS:
    Formula:C20H24O2
    Color and Shape:Neat
    Molecular weight:296.40

    Ref: 04-C13245100

    250mg
    To inquire
  • Ethinylestradiol

    CAS:
    Color and Shape:Neat

    Ref: 86-MM0123.00

    250mg
    832.00€
  • 17a-Ethinylestradiol 100 µg/mL in Acetonitrile

    Controlled Product
    CAS:
    Formula:C20H24O2
    Color and Shape:Single Solution
    Molecular weight:296.40

    Ref: 04-XA13245100AL

    1ml
    30.00€
  • GB 31660.2-2019 Antibiotics Mixture 168 30-100 µg/mL in Methanol

    Controlled Product
    CAS:
    Color and Shape:Mixture

    Ref: 04-A50000168ME

    1ml
    To inquire
  • Ethinylestradiol-13C2

    CAS:
    Formula:C1813C2H24O2
    Molecular weight:298.39

    Ref: 4Z-E-4610

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Ethinylestradiol RS

    CAS:
    Color and Shape:White To Pale Yellow

    Ref: 2K-1023000021

    100mg
    To inquire
  • Ethynyl Estradiol-2,4,9,6,6,16,16-d7 (Major)

    Controlled Product
    CAS:
    <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:C20H17D7O2
    Color and Shape:White To Off-White
    Molecular weight:303.45

    Ref: TR-E685104

    1mg
    328.00€
    10mg
    2,092.00€
  • Ethynyl Estradiol

    Controlled Product
    CAS:
    <p>Applications Ethynyl Estradiol, an oral contraceptive (1), is a synthetic steroid with high oral estrogenic potency. Used in estrogen replacement therapy. (2)This compound is a contaminant of emerging concern (CECs). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<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:C20H24O2
    Color and Shape:Off-White
    Molecular weight:296.40

    Ref: TR-E685100

    1g
    103.00€
    500mg
    102.00€
    2500mg
    184.00€
  • Ref: 10-F358085

    1g
    24.00€
    5g
    86.00€
  • Ethynyl Estradiol-d7

    Controlled Product
    CAS:
    Formula:C20D7H17O2
    Color and Shape:Neat
    Molecular weight:303.447

    Ref: TR-E685103

    25mg
    21,706.00€
  • Ethynylestradiol

    CAS:
    <p>Ethynylestradiol is a synthetic estrogen that is used in hormone replacement therapy. It belongs to the group of estrogens and has been shown to be a potent inhibitor of ovarian activity. Ethinyl estradiol is metabolized through catechol-O-methyltransferase (COMT) and sulfotransferases, which leads to an increased rate constant for its clearance from plasma. The drug also has interactions with other drugs, such as protease inhibitors, which may lead to disease activity or toxicity in the liver. Ethynylestradiol binds specifically to bcl-2 protein, which may be related to its anti-inflammatory properties.</p>
    Formula:C20H24O2
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:296.4 g/mol

    Ref: 3D-FE23175

    5g
    233.00€
    10g
    341.00€
    25g
    607.00€
    50g
    1,036.00€
    100g
    1,735.00€