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.
E2257
β-Estradiol
powder, γ-irradiated, suitable for cell culture
Synonyme(s) :
1,3,5-Estratriene-3,17β-diol, 17β-Estradiol, 3,17β-Dihydroxy-1,3,5(10)-estratriene, Dihydrofolliculin
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1 MG
101,00 $
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1 MG
101,00 $
About This Item
Formule empirique (notation de Hill) :
C18H24O2
Numéro CAS:
Poids moléculaire :
272.38
Beilstein:
1914275
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352209
ID de substance PubChem :
Nomenclature NACRES :
NA.77
Produits recommandés
Source biologique
synthetic (organic)
Niveau de qualité
Stérilité
γ-irradiated
Gamme de produits
BioXtra
Essai
≥98% (HPLC)
Forme
powder
Technique(s)
cell culture | mammalian: suitable
Pf
176-180 °C (lit.)
Solubilité
ethanol: 1 mg/mL, clear, colorless to very faintly yellow
Adéquation
suitable for
Conditions d'expédition
ambient
Température de stockage
room temp
Chaîne SMILES
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
Clé InChI
VOXZDWNPVJITMN-ZBRFXRBCSA-N
Informations sur le gène
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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Description générale
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]
Application
β-Estradiol is used to study cell differentiation and transformations (tumorigenicity).
Actions biochimiques/physiologiques
The major estrogen secreted by the premenopausal ovary. Estrogens direct the development of the female phenotype in embryogenesis and during puberty by regulating gene transcription and, thus, protein synthesis. It also induces the production of gonadotropins which, in turn, induce ovulation. Exposure to estradiol increases breast cancer incidence and proliferation.
The major estrogen secreted by the premenopausal ovary.
Forme physique
powder-RT; stock-frozen in working aliquots, avoid repeated freeze/thaw
Reconstitution
To prepare 20 μg/ml stock solution: add 1 ml absolute ethanol; gently swirl to dissolve; add 49 ml sterile medium while mixing.
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Lact. - Repr. 1A
Code de la classe de stockage
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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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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