17-Ethynyl-estradiol

Ethynodrel U 164 Ethynyl estradiol 1, 162 Etidocaine 95 Etinfidine 3, 135 Etoclofene 2, 89 Etomidate 3, 135... [Pg.267]

A solution of 1.5 grams of 17a-ethynyl estradiol in 50 cc of absolute ethanol is added slowly to a mixture of 3 grams of cyclopentyl bromide and 2 grams of potassium carbonate. This mixture is heated to reflux and stirred for 3 hours, then filtered. Most of the alcohol is eliminated by distillation and the resulting solution diluted with water, and cooled in an ice-bath. The product which precipitates Is collected by filtration, washed and dried. After recrystallization from methanol the 3-cyclopentyl ether of 17a-ethynyl estradiol shows a melting point of 107° to 108°C. [Pg.1342]

Ethyl p-toluenesulfonate Bretylium tosylate N-ethyl o-toluidine Crotamiton Ethyl undecylenate lophendylate Ethyl urethane Mebuta mate 170 -Ethynyl estradiol Quinestrol... [Pg.1634]

C03-0080. A particular oral contraceptive contains 0.035 mg ethynyl estradiol in each pill. The formula of this compound is C20 H24 O2. How many moles of ethynyl estradiol are there in one pill How many molecules is this How many carbon atoms are in a 0.035-mg sample of ethynyl estradiol What mass of carbon is this ... [Pg.189]

S-estradiol 17a-ethynyl estradiol Agonist Agonist Agonist Agonist... [Pg.153]

Estradiol (E2), ethynyl estradiol (EE) and synthetic estrogens such as diethyl stilbestrol (DES) were from the Sigma Chemical Company, Poole, Dorset, UK. Stocks were prepared in ethanol at 1 mM concentration and stored in glass vials at — 20°C. [Pg.919]

Yoon Y, Westerhoff P, Snyder SA, Esparza M (2003) HPLC-fluorescence detection and adsorption of bisphenol A, 17P-estradiol, and 17a-ethynyl estradiol on powdered activated carbon. Water Res 37 3530-3537... [Pg.65]

Alum A, Yoon Y, Westerhoff P, Abbaszadegan M (2004) Oxidation of bisphenol A, 17beta-estradiol, and 17alpha-ethynyl estradiol and byproduct estrogenicity. Environ Toxicol 19 257-264... [Pg.67]

Alkynes are less common in nature than alkenes, but some are made naturally by some plants and bacteria. A few are used in drugs, including ethynyl estradiol, which is a synthetic female... [Pg.28]

Estradiol is one of the main female sexual hormones it is also the structural backbone for the engineering of some synthetic estrogens, such as ethynyl estradiol or mestranol, used in human hormone treatments. Both natural and synthetic estrogens are classified as endocrine disrupting chemicals (EDCs).6,362 Many of these substances and their metabolites end up in the environment where... [Pg.166]

A solution of 1.5 grams of 17a-ethynyl estradiol in 50 cc of absolute ethanol is... [Pg.2941]

When steroid hormones were first isolated, people believed that no synthetic hormone could rival the astonishing potency of natural steroids. In the past 50 years, however, many synthetic steroids have been developed. Some of these synthetic hormones are hundreds or thousands of times more potent than natural steroids. One example is ethynyl estradiol, a synthetic female hormone that is more potent than estradiol. Ethynyl estradiol is a common ingredient in oral contraceptives. [Pg.1212]

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