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Estradiol

Product Name
Estradiol
CAS No.
57-91-0
Chemical Name
Estradiol
Synonyms
α-Estradiol;BETA-ESTRADIOL;B-ESTRADIOL;ALPHA-ESTRADIOL;17B-ESTRADIOL;Alfatradiol;17α-estradiol;17A-ESTRADIOL;17ALPHA-ESTRADIOL;Estradiol EP Impurity B
CBNumber
CB7289534
Molecular Formula
C18H24O2
Formula Weight
272.39
MOL File
57-91-0.mol
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Estradiol Property

Melting point:
176-180 °C(lit.)
alpha 
D20 +53 to +56° (c = 0.9 in dioxane)
Boiling point:
355.44°C (rough estimate)
Density 
1.0708 (rough estimate)
refractive index 
1.4800 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
ethanol: 50 mg/mL, clear, colorless
form 
powder
pka
10.27±0.60(Predicted)
color 
white with slight yellow
Water Solubility 
3.9mg/L(25 ºC)
Merck 
14,3704
CAS DataBase Reference
57-91-0(CAS DataBase Reference)
NIST Chemistry Reference
Estra-1,3,5(10)-triene-3,17alpha-diol(57-91-0)
EPA Substance Registry System
Estra-1,3,5(10)-triene-3,17-diol, (17.alpha.)- (57-91-0)
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Safety

Hazard Codes 
T,Xn
Risk Statements 
45-48-40
Safety Statements 
53-45-24/25-22
RIDADR 
UN 2811 6.1/PG 2
WGK Germany 
3
RTECS 
KG3750000
8-10
HS Code 
29372390
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H341Suspected of causing genetic defects

H351Suspected of causing cancer

H362May cause harm to breast-fed children

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P263Avoid contact during pregnancy/while nursing.

P273Avoid release to the environment.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
E8750
Product name
α-Estradiol
Purity
powder, ≥98% (TLC)
Packaging
1g
Price
$449.4
Updated
2024/03/01
Sigma-Aldrich
Product number
46542
Product name
α-Estradiol
Purity
VETRANAL
Packaging
100mg
Price
$156
Updated
2024/03/01
Cayman Chemical
Product number
20776
Product name
17α-Estradiol
Purity
≥98%
Packaging
50mg
Price
$40
Updated
2024/03/01
Cayman Chemical
Product number
20776
Product name
17α-Estradiol
Purity
≥98%
Packaging
100mg
Price
$76
Updated
2024/03/01
Sigma-Aldrich
Product number
E8750
Product name
α-Estradiol
Purity
powder, ≥98% (TLC)
Packaging
100mg
Price
$120
Updated
2024/03/01
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Estradiol Chemical Properties,Usage,Production

Chemical Properties

White Solid

Uses

Estradiol (known as α-Estradiol or 17 α-Estradiol) is a biologically active estrogen in human breast cancer cells in tissue culture. 17-Εstradiol and its selective receptor, ER-X, are not part of a classical hormone/receptor endocrine system but of a system with important autocrine/paracrine functions in the developing and adult brain. 17-Estradiol may have enormous implications for hormone replacement strategies at the menopause and in the treatment of such neurodegenerative disorders as Alzheimer’s disease and ischemic stroke.

Definition

ChEBI: An estradiol that is estra-1,3,5(10)-triene substituted by hydroxy groups at positions 3 and 17 (the 17alpha stereoisomer).

Biological Activity

Endogenous estrogen receptor ligand (K i values are 0.2 and 1.2 nM for ER α and ER β receptors respectively).

Biochem/physiol Actions

Estradiol (known as alpha Estradiol or 17 alpha Estradiol) is a biologically active estrogen in human breast cancer cells in tissue culture.17-estradiol and its selective receptor, ER-X, are not part of a classical hormone/receptor endocrine system but of a system with important autocrine/paracrine functions in the developing and adult brain. 17-Estradiol may have enormous implications for hormone replacement strategies at the menopause and in the treatment of such neurodegenerative disorders as Alzheimer′s disease and ischemic stroke.

target

Beta Amyloid | Bcl-2/Bax | Caspase | PARP | Estrogen receptor | GABA Receptor | Progestogen receptor

storage

Room temperature

Purification Methods

17-Estradiol recrystallises from aqueous EtOH (80%) as the hemihydrate and differs from the -anomer (below) by not precipitating with digitonin in 80% aqueous EtOH. The diacetate [1474-52-8] crystallises from aqueous EtOH in needles with m 139-140o. The 3-benzoate crystallises in three forms m 158o, 153o and 63o.

Estradiol Preparation Products And Raw materials

Raw materials

Preparation Products

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Estradiol Suppliers

EMMX Biotechnology LLC
Tel
888-539-0666
Fax
888-539-0666
Email
info@emmx.com
Country
United States
ProdList
8449
Advantage
60
InvivoChem
Tel
+1-708-310-1919 +1-13798911105
Fax
708-557-7486
Email
sales@invivochem.cn
Country
United States
ProdList
6393
Advantage
58
Standardpharm Co. Ltd.
Tel
86-714-3992388
Email
overseasales1@yongstandards.com
Country
United States
ProdList
14336
Advantage
58
Aladdin Scientific
Tel
+1-833-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
57511
Advantage
58
TargetMol Chemicals Inc.
Tel
+1-781-999-5354
Email
support@targetmol.com
Country
United States
ProdList
19973
Advantage
58
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View Lastest Price from Estradiol manufacturers

Wuhan Cell Pharmaceutical Co., Ltd
Product
Estradiol 57-91-0
Price
US $9.90/g
Min. Order
1g
Purity
99%
Supply Ability
100kg
Release date
2023-05-17
Hong Kong Excellence Biotechnology Co., Ltd.
Product
17a-estradiol 57-91-0
Price
US $100.00/kg
Min. Order
1kg
Purity
99.9%
Supply Ability
20tons
Release date
2023-10-12
Shanghai Aosiris new Material Technology Co., LTD
Product
Estradiol 57-91-0
Price
US $3.00-1.00/kg
Min. Order
1kg
Purity
99.9%
Supply Ability
10 tons
Release date
2024-03-27

57-91-0, EstradiolRelated Search:


  • 1,3,5-estratriene-3,17-alpha-diol
  • 1,3,5-Estratriene-3,17alpha-diol
  • 17alpha-Oestradiol
  • 3,17alpha-Dihydroxyestra-1,3,5(10)-triene
  • 3,17-alpha-dihydroxyoestra-1,3,5(10)-triene
  • 3,17alpha-Dihydroxyoestra-1,3,5(10)-triene
  • 5(10)-triene-3,17-diol,(17-alpha)-estra-3
  • epiestradial
  • Estra-1,3,5(10)-triene-3,17alpha-diol
  • Estra-1,3,5(10)-triene-3,17-diol, (17alpha)-
  • Estradiol, 17alpha-
  • Oestra-1,3,5(10)-triene-3,17alpha-diol
  • Oestradiol-17alpha
  • oestradiol-17-alpha
  • Ethinylestradiol Impurity 12(Ethinylestradiol EP Impurity L)
  • 1,3,5(10)-estratriene-3,17α-diol
  • A-ESTRADIOL
  • (8S,9S,13S,14S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta
  • 17A-ESTRADIOL-CARC USP28
  • 1,3,5-Estratriene-3,17β-diol, 3,17β-Dihydroxy-1,3,5(10)-estratriene
  • C02537
  • α-Estradiol,1,3,5(10)-Estratriene-3,17α-diol, 3,17α-Dihydroxy-1,3,5(10)-estratriene, Epiestradiol
  • 13β-Methyl-1,3,5(10)-gonatriene-3,17α-diol
  • 17-Epiestradiol
  • 17α-Oestradiol
  • 3,17α-Dihydroxyoestra-1,3,5(10)-triene
  • Alfatradiol
  • Epiestrol
  • IMp. L (EP): Estra-1,3,5(10)-triene-3,17a-diol (17a-Estradiol
  • ESTRADIOL, 17a-(P)
  • 17-epi-Estradiol (Estradiol IMpurity B)
  • Epiestradiol 17a-Estradiol
  • 17a-Estradiol solution,100ppm
  • (8R,9S,13S,14S,17R)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol
  • Estradiol Impurity 2(Estradiol EP Impurity B)
  • 3-O-Methyl-6-oxo 17&beta
  • 4-Methyl-17&alpha
  • 2-Methoxy-d3 17&beta
  • α-Estradiol 57-91-0
  • 7Α-Estriol
  • 17-O-Acetyl-3-O-methyl-6-oxo 17&beta
  • 2-Bromo 17&beta
  • 4-Methoxy 17&beta
  • Estradiol EP Impurity B
  • 2-Hydroxy-17&beta
  • 4-Carboxyl-17&beta
  • 4-Formyl-17&beta
  • 3-O-Methyl 17&alpha
  • 4-Bromo 17&beta
  • (4-Methyl-d3)-17&alpha
  • 4-Hydroxy-17&beta
  • 2-Formyl-17&beta
  • B-ESTRADIOL
  • BETA-ESTRADIOL
  • CIS-ESTRADIOL
  • EPIESTRADIOL
  • E 2
  • DIOGYN