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Nanjing Bangnuo Biotechnology Co., Ltd.

Ethynyl Estradiol, 57-63-6, Anti Estrogen manufacturer / supplier in China, offering Anti Estrogen Powder CAS 57-63-6 Ethynyl Estradiol for Prevent Pregnancy, High Purity Nootropic CAS 110958-19-5 Raw Material Fasoracetam, H-Desonide Topical Corticosteroid Anti-Inflammatory Steroderm Raw Powder and so on.

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Supplier Homepage Product Anti Estrogen Drugs Anti Estrogen Powder CAS 57-63-6 Ethynyl Estradiol for Prevent Pregnancy

Anti Estrogen Powder CAS 57-63-6 Ethynyl Estradiol for Prevent Pregnancy

Purchase Qty.:
1-4 5-9 10+
FOB Unit Price: US $1 US $2 US $3
Purchase Qty. (g) FOB Unit Price
1-4 US $1
5-9 US $2
10+ US $3
Get Latest Price
Production Capacity: 100kg/Month
Transport Package: 5g/10g/100g
Payment Terms: T/T, Western Union, Money Gram, Bitcoin

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Basic Info
  • Model NO.: Ethynyl Estradiol
  • Customized: Non-Customized
  • Suitable for: Adult
  • Purity: >99%
  • Market: Worldwide
  • Specification: 57-63-6
  • HS Code: 3001909010
  • Powder: Yes
  • Certification: ISO 9001
  • State: Solid
  • Sample: Free
  • Trademark: NJBN STEROID
  • Origin: Made in China
Product Description
Anti Estrogen Powder Ethynyl Estradiol CAS 57-63-6  Purity 99%

Ethynyl estradiol
AppearanceWhite Powde


Ethinyl Estradiol description
1.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.
2.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.

Items of analysis

AppearanceWhite to creamy white, odorless, crystalline powderwhite crystalline powder
SolubilityInsoluble in water; soluble in alcohol, in chloroform, in ether,in vegetable oils, and in solutions of fixed alkali hydroxides.Conforms
Identification A:IR B:UVConforms
Specific optical rotation-28°\u65374X -29.5°-29°
Melting range180~186ºC183~184ºC
Loss on drying≤1.0%0.29%
Residual Solvents Acetone≤5000ppm;Ethanol≤5000ppm;235ppm;No Detectable;No Detectable
Assay97.0~102.0% (on the dried basis)99.5%
Particle Size90% ≤10μConforms

Usage of Ethinyl estradiol

1.Ethinyl estradiol and norgestimate combination is used to prevent pregnancy. It is a birth control pill that contains two types of hormones, ethinyl estradiol and norgestimate, and when taken properly, prevents pregnancy. It works by stopping a woman's egg from fully developing each month. The egg can no longer accept a sperm and fertilization is prevented.
2.Ethinyl estradiol and norgestimate combination is also used to treat moderate acne in females who started having menstrual period and also wants to use this medicine for birth control..



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Estradiol CAS:50-28-2
Norgestrel CAS:6533-00-2
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