Skip to Content
Merck
All Photos(1)

Documents

1260001

USP

Ethinyl estradiol

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

17α-Ethynylestradiol, 17α-Ethynyl-1,3,5(10)-estratriene-3,17β-diol, 19-Nor-1,3,5(10),17α-pregnatrien-20-yne-3,17-diol, Ethinylestradiol

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C20H24O2
CAS Number:
57-63-6
Molecular Weight:
296.40
Beilstein:
2419975
MDL number:
MFCD00003690
UNSPSC Code:
41116107
PubChem Substance ID:
329749765
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

ethinyl estradiol

manufacturer/tradename

USP

mp

182-183 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

[H][C@]12CC[C@@]3(C)[C@@]([H])(CC[C@@]3(O)C#C)[C@]1([H])CCc4cc(O)ccc24

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

BFPYWIDHMRZLRN-SLHNCBLASA-N

Gene Information

human ... ESR1(2099)

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Ethinyl estradiol USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Desogestrel and Ethinyl Estradiol Tablets
  • Drospirenone and Ethinyl Estradiol Tablets
  • Ethinyl Estradiol
  • Ethinyl Estradiol Tablets
  • Ethynodiol Diacetate and Ethinyl Estradiol Tablets
  • Levonorgestrel and Ethinyl Estradiol Tablets
  • Norethindrone Acetate and Ethinyl Estradiol Tablets

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Signal Word

Danger

Hazard Statements

H302,H351,H360Fd,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 1 - Carc. 2 - Repr. 1A

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Tomás Cajthaml et al.
Environmental pollution (Barking, Essex : 1987), 157(12), 3325-3335 (2009-07-25)
Natural estrogens such as estrone, 17beta-estradiol, estriol, and the particularly recalcitrant synthetic estrogen 17alpha-ethinylestradiol used as oral contraceptive, accumulate in the environment and may give rise to health problems. The processes participating in their removal from soil, wastewater, water-sediments, groundwater-aquifer
Caroline Fenton et al.
Drugs, 67(12), 1749-1765 (2007-08-09)
Drospirenone 3mg with ethinylestradiol 20microg (Yaz) is a low-dose combined oral contraceptive (COC) administered in a regimen of 24 days of active tablets followed by a short hormone-free interval (4 days; 24/4 regimen). Drospirenone, unlike other synthetic progestogens used in
Andrew M Kaunitz et al.
Obstetrics and gynecology, 123(2 Pt 1), 295-303 (2014-01-10)
To compare a new low-dose levonorgestrel and ethinyl estradiol contraceptive patch (Patch) with a combination oral contraceptive (Pill; 100 micrograms levonorgestrel, 20 micrograms ethinyl estradiol) regarding efficacy, safety, compliance, and unscheduled uterine bleeding. Women (17-40 years; body mass index 16-60)
Hongjian Zhang et al.
Clinical pharmacokinetics, 46(2), 133-157 (2007-01-27)
17alpha-Ethinylestradiol (EE) is widely used as the estrogenic component of oral contraceptives (OC). In vitro and in vivo metabolism studies indicate that EE is extensively metabolised, primarily via intestinal sulfation and hepatic oxidation, glucuronidation and sulfation. Cytochrome P450 (CYP)3A4-mediated EE
Per Hallgren et al.
Environmental toxicology and chemistry, 33(4), 930-936 (2014-03-13)
Endocrine-disrupting chemicals are known to alter the fitness of individual organisms via changes in growth, behavior, and reproduction. It is largely unknown, however, whether these effects cascade through the food web and indirectly affect other, less sensitive organisms. The authors
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service