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E8875

Sigma-Aldrich

17β-Estradiol

≥98% (HPLC), powder, estrogenic hormone

Synonym(s):

1,3,5-Estratriene-3,17β-diol, 17β-Estradiol, 3,17β-Dihydroxy-1,3,5(10)-estratriene, Dihydrofolliculin

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About This Item

Empirical Formula (Hill Notation):
C18H24O2
CAS Number:
Molecular Weight:
272.38
Beilstein/REAXYS Number:
1914275
EC Number:
MDL number:
UNSPSC Code:
12352104
PubChem Substance ID:
NACRES:
NA.77

product name

β-Estradiol, ≥98%

biological source

synthetic (organic)

Quality Level

sterility

non-sterile

assay

≥98%

form

powder

technique(s)

cell culture | mammalian: suitable

mp

176-180 °C (lit.)

solubility

ethanol: 50 mg/mL, clear, colorless

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

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General description

β-Estradiolis a natural steroid estrogen and a female sex hormone. It is an essential component of the female menstrual cycle and plays an important role in the growth and maintenance of the reproductive system.

Application

β-Estradiol has been used:
  • for the in vitro maturation of bovine cumulus-oocyte complexes (COCs)
  • as a supplement in in vitro maturation medium (IVM), which is used as a control medium
  • in estrogen-induction assay

Biochem/physiol Actions

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.

Features and Benefits

This compound is featured on the Acetylcholine Receptors (Nicotinic) and Nuclear Receptors (Steroids) pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

pictograms

Health hazardEnvironment

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Lact. - Repr. 1A

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Natriuretic peptide receptor 2 (NPR2) localized in bovine oocyte underlies a unique mechanism for C-type natriuretic peptide (CNP)-induced meiotic arrest.
Xi G, et al.
Theriogenology, 106, 198-209 (2018)
Three-step in vitro maturation culture of bovine oocytes imitating temporal changes of estradiol-17beta and progesterone concentrations in preovulatory follicular fluid.
Matsuo M, et al.
Archives Animal Breeding, 60(4), 385-390 (2017)
Youqiang Li et al.
International journal of oncology, 46(4), 1461-1472 (2015-02-06)
Hormone therapy targeting estrogen receptor α (ERα) is the most effective treatment for breast cancer. However, this treatment eventually fails as the tumor develops resistance. Although reduced expression of ER-α is a known contributing factor to endocrine resistance, the mechanism
Emily Powell et al.
The Journal of biological chemistry, 285(21), 16125-16134 (2010-04-01)
The two estrogen receptor (ER) subforms, ERalpha and ERbeta, are capable of forming DNA-binding homodimers and heterodimers. Although binding to DNA is thought to stabilize ER dimers, how ERalpha/alpha, ERbeta/beta, and ERalpha/beta dimerization is regulated by DNA and the chaperone
X Xue et al.
Oncogene, 35(21), 2746-2755 (2015-09-15)
Tamoxifen, an estrogen receptor (ER) antagonist, is the mainstay treatment of breast cancer and the development of resistance represents a major obstacle for a cure. Although long non-coding RNAs such as HOTAIR have been implicated in breast tumorigenesis, their roles

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