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Home ProductsAnti Estrogen Steroids

CAS 57-63-6 Anti Estrogen Steroids Pharmaceutical Ethinyl Estradiol Birth Control

CAS 57-63-6 Anti Estrogen Steroids Pharmaceutical Ethinyl Estradiol Birth Control

CAS 57-63-6 Anti Estrogen Steroids Pharmaceutical Ethinyl Estradiol Birth Control

Product Details:

Place of Origin: China
Brand Name: Rund
Certification: ISO9001
Model Number: CAS 57-63-6

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: 10/100/250/500/1000g/foil bag
Delivery Time: 2-3 days
Payment Terms: T/T, Western Union, MoneyGram, BTCcoin
Supply Ability: 1000kg per momth
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Detailed Product Description
Product Name: Ethynyl Estradiol CAS: 57-63-6
Appearance: White Powder MF: C20H24O2
MW: 296.4 EINECS: 200-342-2

Anti Estrogen Steroids Pharmaceutical Ethynyl Estradiol CAS 57-63-6 White Powder,oral contraceptive


Product name Ethynyl estradiol
CAS NO 57-63-6
Purity 85%
MF C20H24O2
MW 296.4
EINECS 200-342-2
Appearance White Powder
Usage Anti Estrogen Steroids





Functionalized Acetylenes;Hydroxysteroids;Intermediates & Fine-Chemicals;Metabolites&Impurities;Pharmaceuticals;progestogen estrogen;ESTINYL;Hormone Drugs;Inhibitors



Ethinyl Estradiol is hormonally effective by activating the estrogen receptor and thus is an estrogen . It finds its most common use in the estrogen-progestin combination preparations of oral contraceptives .


Ethinyl Estradiol is absorbed in the small intestine and reaches a serum peak about 2 hours later . It undergoes extensive metabolism in the liver involving the cytochrome P450 3A4 isoenzyme . Ethinyl Estradiol and its metabolites are excreted with the bile . Due to the effect of enterohepatic circulation a second peak is seen several hours later . Individually , wide variations exist in the overall absorption process , and can be further modified by drugs that affect the enterohepatic circulation or liver enzymes . In circulation Ethinyl Estradiol is almost fully bound to plasma albumin . It is metabolized by hydroxylation of the aromatic ring and excreted in both feces and urine , in part as glucuronide and sulfate conjugate .




Product Name Ethynyl Estradiol
Synonyms Novestrol;Neo-Estrone;Ethynylestradiol;Ethinyl Estradiol;Lynoral;17alpha-Ethynyl-Delta1,3,5(10)-Estra-Triene-3,17beta-Diol;17alpha-Ethynylestradiol;17alpha-Ethinylestradiol
CAS 57-63-6 CAS 57-63-6 Anti Estrogen Steroids Pharmaceutical Ethinyl Estradiol Birth Control
MF C20H24O2
MW 296.4
EINECS 200-342-2
Melting point 182-183 °C(lit.)
Refractive index -30 ° (C=0.4, Pyridine)
Solubility ethanol: 50 mg/mL, clear, slightly yellow
Chemical Properties Off-White to Light-Yellow Crystalline Powder
Air & Water Reactions Air and light sensitive . Insoluble in water.
Reactivity Profile Ethynyl estradiol may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to generate gaseous hydrogen.
Usage A synthetic steroid. Used in combination with progestogen as an oral contraceptive.

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