Estron Produkt Beschreibung

Estrone Struktur
53-16-7
  • CAS-Nr.53-16-7
  • Bezeichnung:Estron
  • Englisch Name:Estrone
  • Synonyma:Estron
    E 1;CHE1;Estrin;Estron;Kolpon;ESTROL;OESTRON;e(sub1);Estrona;Menagen
  • CBNumber:CB5741416
  • Summenformel:C18H22O2
  • Molgewicht:270.37
  • MOL-Datei:53-16-7.mol
Estron physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :258-260 °C(lit.)
  • Siedepunkt: :353.48°C (rough estimate)
  • alpha  :158 º (c=1, dioxane)
  • Dichte :1.2360
  • Brechungsindex :165 ° (C=1, Dioxane)
  • Flammpunkt: :9℃
  • storage temp.  :room temp
  • Aggregatzustand :Crystalline Powder or Crystals
  • pka :pKa 10.77±0.02(H2O)(Approximate)
  • Farbe :White to almost white
  • Wasserlöslichkeit :0.03 g/L
  • Merck  :3708
  • BRN  :1915077
  • InChIKey :DNXHEGUUPJUMQT-CBZIJGRNSA-N
  • CAS Datenbank :53-16-7(CAS DataBase Reference)
  • NIST chemische Informationen :3-Hydroxyestra-1,3,5(10)-trien-17-one(53-16-7)
  • EPA chemische Informationen :Estrone (53-16-7)
Sicherheit

Estrone Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R45:Kann Krebs erzeugen.
    R60:Kann die Fortpflanzungsfähigkeit beeinträchtigen.
    R61:Kann das Kind im Mutterleib schädigen.
  • S-Sätze Betriebsanweisung: S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
    S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
  • Beschreibung Estrone is one of the three naturally occurring estrogens, the others being estradiol and estriol. Estrone is synthesized from androstenedione by the aromatase enzyme system in the ovaries and placenta, and is also synthesized from estradiol by 17-hydroxy steroid dehydrogenase in the liver.Serum concentrations of estrone in premenopausal women fluctuate according to the menstrual cycle and becomes the most predominant estrogen in postmenopausal women.The binding affinities of estrone to the estrogen receptors α and β are approximately 60% and 37% relative to estradiol.
  • Chemische Eigenschaften Estrone is an odorless white crystalline powder.
    Estrone is supplied as a crystalline solid. A stock solution may be made by dissolving the estrone in an organic solvent purged with an inert gas. Estrone is soluble in organic solvents such as DMSO and dimethyl formamide (DMF). The solubility of estrone in these solvents is approximately 20 mg/ml.
    Estrone is sparingly soluble in aqueous buffers. For maximum solubility in aqueous buffers, estrone should first be dissolved in DMF and then diluted with the aqueous buffer of choice. Estrone has a solubility of approximately 0.15 mg/ml in a1:5 solution of DMF:PBS (pH 7.2) using this method. We do not recommend storing the aqueous solution for more than one day.
  • Originator Estrone,Abbott
  • Verwenden Estrone is a metabolite of 17β-Estradiol (E888000). During the metabolism, it is in rapid equilibrium with Estriol (E888960) and 17β-Estradiol (E888000) (1). Causes the feminization of male fish at human and animal waste sites (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.
  • Verwenden A metabolite of 17β-Estradiol.
  • Verwenden Estrone is a weak form of estrogen and exists as estrone sulphate. Estrone is a luteolytic estrogen produced by the corpus luteum. In the follicle, estrone is synthesized from androstenedione by the action of cytochrome P450 aromatase.
    Estrone has been used:
    as medium supplement for hormone based degranulation studies of natural killer cells.
    as an endocrine disrupting compound for screening bacterial biosensor in toxic water.
    as medium component for monitoring fatty acid synthase (FASN) activity in breast adenocarcinoma cell lines.
  • Definition ChEBI: A 17-oxo steroid that is estra-1,3,5(10)-triene substituted by an hydroxy group at position 3 and an oxo group at position 17.
  • Manufacturing Process 1-Vinyl-1,2,3,4-tetrahydronaphthalene-1,6-diol reacts with 2- methylcyclopentane-1,3-dione in the presence of Triton B in tert-butanol gives a good yield of δ1,3,5(10),9(11)-8,14-secoestratetraen-3-ol-14,17-dione, melting point 124°-126°C (from methanol).
    δ1,3,5(10),9(11)-8,14-Secoestratetraen-3-ol-14,17-dione under influence of hydrochloric acid in tetrahydrofurane cyclises into δ1,3,5(10),8,14-estrapentaen- 3-ol-17-one, melting point 216°-218°C.
    δ1,3,5(10),8,14-Estrapentaen-3-ol-17-one is converted to d,l-8-dehydroestrone by selective hydrogenation with hydrogen, melting point 251°-254°C (from methanol). Exhaustive hydrogenation of δ1,3,5(10),8,14-estrapentaen-3-ol-17- one give d,l-8-isoestrone.
    d,l-8-Isoestrone in the presence of hydrochloric acid in tetrahydrofurane isomerizes into d,l-9(11)-dehydroestrone, melting point 262°-265°C (from alcohol).
    Hydrogenation of d,l-9(11)-dehydroestrone in tetrahydrofuran in the presence of Pd/CaCO3 yields the estrone, melting point 251°-252°C (from acetone).
  • Trademarks Estrogenic Substance (Wyeth); Theelin (Parkdale).
  • Therapeutic Function Estrogen
  • Allgemeine Beschreibung Estrone, 3-hydroxyestra-1,3,5(10)-trien-17-one, is less active than estradiol but more active than itsmetabolite, estriol. As the salt of its 3-sulfate ester, estroneis the primary ingredient in conjugated estrogens, USP, andesterified estrogens, USP. Although originally obtainedfrom the urine of pregnant mares (about 10 mg/L), estroneis now prepared synthetically. Estrone itself is not availablein commercial oral formulations, but can be obtained at compounding pharmacies as a topical formulation. Oleoylestrone,the C3 ester of estrone with oleic acid, is in phase IIclinical trials for the treatment of obesity. This acyl estronederivative reduces fat stores by a mechanism not involvingthe ER, although some of the oleoyl-estrone is hydrolyzedto estrone in vivo.
  • Hazard A carcinogen (OSHA).
  • Sicherheitsprofil Confirmed carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic, and teratogenic data. A poison by intraperitoneal and subcutaneous routes. Human reproductive effects by implantation: spermatogenesis and impotence. Mutation data reported. A steroid drug for the treatment of menopause and ovariectomy symptoms. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Chemical Synthesis Estrone, 3-hydroxyestra-1,3,5(10)-trien-17-one (28.1.9), has been made synthetically in various ways. According to one of the first and most simple schemes, synthesis was carried out in the following manner. Condensation of 3-methoxyphenylacetylene with bicyclohexane-1,5-dione in a Favorskii reaction conditions lead to the corresponding carbinol (28.1.1). The triple bond was reduced by hydrogen over a palladium catalyst, forming the tertiary alcohol (28.1.2), which was then dehydrated in acidic conditions to give the compound (28.1.3). Intramolecular alkylation of this compound in the presence of anhydrous aluminum chloride formed a tetracyclic ketone (28.1.4), which during condensation with benzaldehyde was transformed into an eneone (28.1.5). This was methylated at the β-position relative to the keto-group by methyl iodide in the presence of potassium tert-butylate, and the resulting compound (28.1.6) underwent ozonolysis, forming the dicarboxylic acid (28.1.7). Cyclization of this compound to a cyclopentanone derivative lead to the formation of methyl ester of the desired estrone (28.1.8), and demethylation of the phenolic hydroxyl group by hydrobromic acid formed the desired estrone (28.1.9).

  • mögliche Exposition Synthesized from ergosterol. Used in combination with progestogen as an oral contraceptive.
  • Versand/Shipping UN3249 Medicine, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
  • läuterung methode Purify estrone by chromatography on silica gel, eluting with 2:1 hexane/EtOAc and recrystallising from EtOH or Et2O/EtOH. [Danishefsky & Cain J Am Chem Soc 98 4975 1976.] The acetate [901-93-9] crystallises from EtOH with m 125-127o. [Beilstein 8 III 1171.]
  • Inkompatibilitäten May react exothermically with reducing agents to generate flammable gaseous hydrogen. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides.
Estrone Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Estron Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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53-16-7, Estrone Verwandte Suche:
  • 1,3,5(10)-Estratrien-3-ol-17-one, 3-Hydroxy-1,3,5(10)-estratrien-17-one, Folliculin
  • 3-Hydroxy-13-methyl-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one
  • Estropipate (Estrone)
  • Estrone,1,3,5(10)-Estratrien-3-ol-17-one, 3-Hydroxy-1,3,5(10)-estratrien-17-one, Folliculin
  • Estrone (200 mg)
  • Estrone, Plant Base, USP
  • ESTRA-1,3,5(10)-TRIEN-3-OL-17-ONE
  • OESTRON
  • 3-Hydroxy-1,3,5(10)-estrareien-17-one
  • Estrone Estrovarin
  • ESTRONE USP 23
  • ketohydrocyestrin
  • wynestrone
  • Estronel
  • Ethinylestradiol EP IMpurity C
  • (8R,9S,13S,14S)-3-hydroxy-13-Methyl-7,8,9,11,12,13,15,16-octahydro-6H-cyclopenta[a]phenanthren-17(14H)-one
  • (1S,10R,11S,15S)-5-hydroxy-15-Methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2,4,6-trien-14-one
  • 3-Hydroxy-17-ketooestra-1,3,5-triene
  • 3-Hydroxyestra-1(10),2,4-trien-17-one
  • 3-Hydroxyestra-1,3,5(10)-17-one
  • 3-Hydroxyestra-1,3,5(10)-triene-17-one
  • 3-Hydroxy-oestra-1,3,5(10)-trien-17-one
  • 5(10)-trien-17-one,3-hydroxy-estra-3
  • Aquacrine
  • component of Spanestrin-P
  • Crinovaryl
  • Cristallovar
  • Crystogen
  • delta-1,3,5-estratrien-3-beta-ol-17-one
  • delta-1,3,5-Estratrien-3beta-ol-17-one
  • delta-1,3,5-oestratrien-3-beta-ol-17-one
  • Conjugated Estrogens EP Impurity B
  • 200-164-5
  • (8R,13S)-3-Hydroxy-13-methyl-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one
  • 1,3,5(10)-Oestratrien-3-ol-17-one
  • 1,3,5-Oestratrien-3-ol-17-one
  • delta-1,3,5-Oestratrien-3beta-ol-17-one
  • Disynformon
  • E(sub 1)
  • e(sub1)
  • Endofolliculina
  • Esterone
  • Estra-1,3,5(10)-trien-17-one, 3-hydroxy-
  • Estrin
  • Estron
  • Estrona
  • Estrone-A
  • EstroneI
  • Estrovarin
  • Estrugenone
  • Estrusol
  • Femestrone inj.
  • Femestrone injection
  • Menagen
  • Menformon
  • Menformon A
  • Mestronaq
  • Oestroperos