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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1 MG
€ 128,00
About This Item
Empirische Formel (Hill-System):
C18H24O2
CAS-Nummer:
Molekulargewicht:
272.38
Beilstein:
1914275
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352209
PubChem Substanz-ID:
NACRES:
NA.77
Empfohlene Produkte
Biologische Quelle
synthetic (organic)
Qualitätsniveau
Sterilität
γ-irradiated
Produktlinie
BioXtra
Assay
≥98% (HPLC)
Form
powder
Methode(n)
cell culture | mammalian: suitable
mp (Schmelzpunkt)
176-180 °C (lit.)
Löslichkeit
ethanol: 1 mg/mL, clear, colorless to very faintly yellow
Eignung
suitable for
Versandbedingung
ambient
Lagertemp.
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
InChIKey
VOXZDWNPVJITMN-ZBRFXRBCSA-N
Angaben zum Gen
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)
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Allgemeine Beschreibung
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.[1] 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.[2] 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.[1]
Anwendung
β-Estradiol is used to study cell differentiation and transformations (tumorigenicity).
Biochem./physiol. Wirkung
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.
Physikalische Form
powder-RT; stock-frozen in working aliquots, avoid repeated freeze/thaw
Rekonstituierung
To prepare 20 μg/ml stock solution: add 1 ml absolute ethanol; gently swirl to dissolve; add 49 ml sterile medium while mixing.
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Lact. - Repr. 1A
Lagerklassenschlüssel
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Kunden haben sich ebenfalls angesehen
Improving in vitro maturation and pregnancy outcome in cattle using a novel oocyte shipping and maturation system not requiring a CO2 gas phase
Barcelo-Fimbres M, et al.
Theriogenology, 84(1), 109-117 (2015)
Estrogen preserves Fas ligand levels by inhibiting microRNA-181a in bone marrow-derived mesenchymal stem cells to maintain bone remodeling balance
Shao B, et al.
Faseb Journal, 29(9), 3935-3944 (2015)
Determination of 17 beta-estradiol in pharmaceutical preparation by UV spectrophotometry and high performance liquid chromatography methods
Yilmaz B and Kadioglu Y
Arabian Journal of Chemistry, 10, S1422-S1428 (2017)
DHEA improves the antioxidant capacity of endometrial stromal cells and improves endometrium receptivity via androgen receptor
Qin A, et al.
Eur. J. Obstet. Gyn. Rep. Biol., 198, 120-126 (2016)
Samantha L P Schilit et al.
American journal of human genetics, 106(1), 41-57 (2019-12-24)
Unexplained infertility affects 2%-3% of reproductive-aged couples. One approach to identifying genes involved in infertility is to study subjects with this clinical phenotype and a de novo balanced chromosomal aberration (BCA). While BCAs may reduce fertility by production of unbalanced
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can this type estradiol be injected intraperitoneally in rat?
1 answer-
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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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