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    Metabolic Enzyme/Protease
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    Endogenous Metabolite
  3. Estradiol

Estradiol (Synonyms: β-Estradiol; E2; 17β-Estradiol; 17β-Oestradiol)

目录号: HY-B0141 纯度: 99.99%

Estradiol 是一种类固醇性激素,对维持女性的生育能力和第二性征至关重要。Estradiol 通过雌激素受体 β (ERβ) 途径上调 IL-6 表达。

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Estradiol Chemical Structure

Estradiol Chemical Structure

CAS No. : 50-28-2

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Size Price Stock Quantity
10 mM * 1  mL in DMSO ¥500 In-stock
500 mg ¥400 In-stock
1 g ¥500 In-stock
5 g   Get quote  
10 g   Get quote  

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  • 生物活性

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  • 参考文献


Estradiol is a steroid sex hormone vital to the maintenance of fertility and secondary sexual characteristics in females. Estradiol upregulates IL-6 expression through the estrogen receptor β (ERβ) pathway[1][2][3].

IC50 & Target

Human Endogenous Metabolite


In Vitro

Estradiol causes new dendritic spines and synapses in hippocampal CA1 pyramidal cells. Estradiol increases NMDA receptor binding by 46% in parallel with dendritic spine and synapse density. Estradiol also elevates sensitivity of CA1 pyramidal cells to NMDA receptor-mediated synaptic input and such an effect is correlated with the estradiol-induced increase in dendritic spine density in the apical dendritic tree of these cells[1]. Estradiol reduces Ba2+ entry reversibly via Ca2+ channels in acutely dissociated and cultured neostriatal neurons. Estradiol also reduces Ba2+ currents but is significantly less effective than Estradiol in rat neostriatal neurons[2].

In Vivo

Estradiol functions in hippocampal synapse density during the estrous cycle in the adult rat[4]. Estradiol reverses the ovariectomy-induced decrease in spine density. Estradiol in combination with progesterone enhances spine density for 2 to 6 h but decreases following estradiol alone[5].

Clinical Trial
Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 50 mg/mL (183.57 mM)

Ethanol : 20 mg/mL (73.43 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (insoluble)

* "≥" means soluble, but saturation unknown.

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.6713 mL 18.3567 mL 36.7134 mL
5 mM 0.7343 mL 3.6713 mL 7.3427 mL
10 mM 0.3671 mL 1.8357 mL 3.6713 mL

储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。 -80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (9.18 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.18 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,澄清透明的生理盐水溶液
  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (9.18 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.18 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (9.18 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.18 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 MCE 网站选购。
Cell Assay

Briefly, B9 cells (5×103/well of a 96-well plate) are cultured with a series of dilutions of the supernatants in a final volume of 100 mL of RPMI 1640, supplemented with 5×10-5mol/Lof 2-mercaptoethanol, 10% FBS, 100 U/mL penicillin, and 100 μg/mL streptomycin in flat-bottom microtiter plates. After 42 h, 0.5 μCi of [3H]thymidine is added. 6 h later, the cells are harvested and the radioactivity incorporated is determined. IL-6 is quantitated from a standard curve set up with known amounts of recombinant human or mouse IL-6. The anti-IL-6 monoclonal antibody completely inhibited the ability of the B9 cells to proliferate in response to recombinant mouse IL-6. In addition, we determined that B9 cells do not proliferate in response to IL-I or TNF, and that antibodies to these two cytokines did not affect the cell proliferation in response to IL-6. Further, it is established that neither Estradiol (17β-estradiol), nor the 0.01% ethanol used as vehicle in these experiments, has any effect on the bioassay.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration

Adult female Sprague Dawley rats are housed on a 12 hr light/dark cycle with unlimited access to food and water. These animals are left gonadally intact (intact), ovariectomized and treated with estradiol benzoate (OVX+E), or ovariectomized and treated with sesame oil vehicle (OVX+O). The hormone treatment regimen that is used in these experiments has been shown previously to result in differences in CA1 pyramidal cell dendritic spine and synapse density. Six days before electrophysiological analysis, animals are ovariectomized under Metofane anesthesia using aseptic surgical procedure. After surgery, animals are housed individually. On days 3 and 4 after surgery, OVX+E animals are injected (s.c.) with 10 μg of 17β-estradiol benzoate in 100 μL of sesame oil vehicle; OVX+O animalsreceive oil vehicle at each injection time. Forty-eight hours after the second estradiol or vehicle injection, animals are killed by decapitation and hippocampal slices are prepared from their brains. Gonadally intact animals are killed at random stages of the estrous cycle.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.


Purity: 99.99%

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The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2


Estradiolβ-EstradiolE217β-Estradiol17β-OestradiolE 2E-2Estrogen Receptor/ERREndogenous MetaboliteInhibitorinhibitorinhibit


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