This product is intended for research use only. It is not suitable for human or veterinary use. The material has not been tested for in vivo use. The end user would need to determine suitability. Solutions intended for use in animal models would require sterile filtration prior to administration.
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E2257
β-Estradiol
powder, γ-irradiated, suitable for cell culture
Synonym(e):
1,3,5-Estratrien-3,17β-diol, 17β-Estradiol, 3,17β-Dihydroxy-1,3,5(10)-oestratrien, Dihydrofolliculin
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| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 mg | Warenkorb auf Verfügbarkeit prüfen | € 134,00 |
Über diesen Artikel
Empirische Formel (Hill-System):
C18H24O2
CAS-Nummer:
Molekulargewicht:
272.38
UNSPSC Code:
12352209
NACRES:
NA.77
PubChem Substance ID:
EC Number:
200-023-8
Beilstein/REAXYS Number:
1914275
MDL number:
Biological source:
synthetic (organic)
Form:
powder
Assay:
≥98% (HPLC)
Technischer Dienst
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Unterstützung erhaltenbiological source
synthetic (organic)
Quality Segment
sterility
γ-irradiated
product line
BioXtra
assay
≥98% (HPLC)
form
powder
technique(s)
cell culture | mammalian: suitable
mp
176-180 °C (lit.)
solubility
ethanol: 1 mg/mL, clear, colorless to very faintly yellow
suitability
suitable for
shipped in
ambient
storage temp.
room temp
SMILES string
O[C@H]1CC[C@@]2([H])[C@]3([H])CCC4=CC(O)=CC=C4[C@@]3([H])CC[C@@]21C
InChI
1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1
InChI key
VOXZDWNPVJITMN-ZBRFXRBCSA-N
Gene Information
human ... ESR1(2099), ESR2(2100), ESRRA(2101), ESRRB(2103), GPER(2852), SERPINA6(866)
mouse ... Esr1(13982), Esr2(13983), Esrra(26379)
rat ... Afp(24177), Ar(24208), Esr1(24890), Esr2(25149), Shbg(24775)
General description
β-estradiol is a natural human estrogen. It is important for the growth of breast and reproductive epithelia, maturation of long bones and the development of secondary sexual characteristics. Estradiol is produced by immature germ cells, spermatozoa, Leydig cells and Sertoli cells. It plays a crucial role in proliferation, regulation of ion transport and regulation of apoptosis in Sertoli cells. Estradiol regulates sperm concentration, motility and morphology. β-estradiol functions as a menopausal hormone. It is implicated in replacement therapy for female hypogonadism or primary ovarian failure. Reduced levels of β-estradiol are associated with heart disease and osteoporosis.
Application
β-Estradiol is used to study cell differentiation and transformations (tumorigenicity).
β-estradiol has been used:
- for primary culture of mouse endometrial stromal cells (ESCs)
- for estrogen treatment in vitro
- in the in vitro maturation of cumulus–oocyte complexes (COCs)
Biochem/physiol Actions
Das von prämenopausalen Eierstöcken hauptsächlich sezernierte Östrogen.
Das von prämenopausalen Eierstöcken hauptsächlich sezernierte Östrogen. Östrogene steuern die Entwicklung des weiblichen Phänotyps in der Embryogenese und während der Pubertät durch Regulierung der Gentranskription und folglich der Proteinsynthese. Sie induzieren auch die Produktion der Gonadotropine, welche wiederum die Ovulation auslösen. Die Exposition an Estradiol ist mit einer erhöhten Brustkrebsinzidenz und -proliferation assoziiert.
Physical form
powder-RT; stock-frozen in working aliquots, avoid repeated freeze/thaw
Preparation Note
To prepare 20 μg/ml stock solution: add 1 ml absolute ethanol; gently swirl to dissolve; add 49 ml sterile medium while mixing.
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description powder, γ-irradiated, suitable for cell culture | description analytical standard | description BioReagent, powder, suitable for cell culture | description ≥98% |
| biological source synthetic (organic) | biological source - | biological source synthetic (organic) | biological source synthetic (organic) |
| assay ≥98% (HPLC) | assay - | assay ≥98% (HPLC) | assay ≥98% |
| product line BioXtra | product line - | product line BioReagent | product line - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| technique(s) cell culture | mammalian: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) cell culture | mammalian: suitable, single cell analysis: suitable | technique(s) cell culture | mammalian: suitable |
| form powder | form - | form powder | form powder |
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Signalwort
Danger
Lagerklasse
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
PSA (Persönliche Schutzausrüstung)
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
Gefahrencodes
Sicherheitshinweise
Hazard Classifications
Aquatic Chronic 1 - Carc. 2 - ED ENV 1 - ED HH 1 - Lact. - Repr. 1A
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can this type estradiol be injected intraperitoneally in rat?
1 answer-
Helpful?
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What is the shelf life as a powder? What is the shelf life once in solution and stored at -20 degrees C?
1 answer-
This product does not contain an expiration date. It contains a recommended retest date of three years after the quality release date. A recommended retest date is the period of time during which the product is expected to remain within established stability specifications, provided that it has been stored under defined conditions. After the Retest Date, product samples should be examined to ensure that the product is still in compliance with the established specifications. For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/US/en/life-science/quality-and-regulatory-management/quality-services.
Upon resuspension, solutions can be stored frozen at -20°C for up to 3 months . It is advised to avoid repeated freeze/thaw cycles. If stored in the refrigerator (4°C), de-gassed stock solutions are stable for up to 6 months.
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