2. Vitamin D Related/Nuclear Receptor
  3. Estrogen Receptor/ERR
  4. Y134

Y134 is a selective and orally active oestrogen receptor (ER) modulator (SERM), exhibits potent antagonist activity at ERα and ERβ. Y134 shows 121.1-fold selectivity for ERα (Ki=0.09 nM) over ERβ (Ki=11.31 nM). Y134 inhibits oestrogen-stimulated proliferation of ER-positive human breast cancer cells.

For research use only. We do not sell to patients.

Y134 Chemical Structure

Y134 Chemical Structure

CAS No. : 849662-80-2

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Based on 1 publication(s) in Google Scholar

Y134 Related Antibodies

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Description

Y134 is a selective and orally active oestrogen receptor (ER) modulator (SERM), exhibits potent antagonist activity at ERα and ERβ. Y134 shows 121.1-fold selectivity for ERα (Ki=0.09 nM) over ERβ (Ki=11.31 nM). Y134 inhibits oestrogen-stimulated proliferation of ER-positive human breast cancer cells[1].

IC50 & Target[1]

ERα

0.09 nM (Ki)

ERβ

11.31 nM (Ki)

In Vitro

Y134 exhibits potent antagonist activity at ERs in CV-1 cells cotransfected with plasmids containing ERα or ERβ and oestrogen-response element-driven luciferase, with IC50s of 0.52 nM for ERα and 2.94 nM for ERβ[1].
Y134 (0.01 nM-10 μM; 6 d) inhibits the oestrogen-stimulated ER-expressing breast cancer cell (MCF-7 and T47D) proliferation[1].

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

Y134 Related Antibodies

Cell Viability Assay[1]

Cell Line: MCF-7, T47, MDA-MB-231 cells
Concentration: 0.01 nM-10 μM
Incubation Time: 6 days
Result: Suppressed oestrogen-stimulated MCF-7 and T47D cell proliferation.
Showed no effects on MDA-MB-231 cells, except some cytotoxicity was seen at high concentrations.
In Vivo

Y134 (1-3 mg/kg/day; p.o. for 3 days) abolishes the E2-induced mammary gland terminal end bud (TEB) outgrowth in ovariectomized rats. Y134 inhibits uterine cell proliferation induced by E2 in a dose-dependent manner[1].

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

Animal Model: Four-week old female Sprague-Dawley rats were received ovariectomy[1]
Dosage: 1, 3 mg/kg
Administration: P.o. daily for 3 days
Result: Abolished the effect exerted by E2 in a dose-dependent manner.
Molecular Weight

472.60

Formula

C28H28N2O3S
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C(C1=C(C2=CC=C(O)C=C2)SC3=CC(O)=CC=C31)C4=CC=C(N5CCN(C(C)C)CC5)C=C4
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (211.60 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1160 mL 10.5798 mL 21.1595 mL
5 mM 0.4232 mL 2.1160 mL 4.2319 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (5.29 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (5.29 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.1160 mL 10.5798 mL 21.1595 mL 52.8989 mL
5 mM 0.4232 mL 2.1160 mL 4.2319 mL 10.5798 mL
10 mM 0.2116 mL 1.0580 mL 2.1160 mL 5.2899 mL
15 mM 0.1411 mL 0.7053 mL 1.4106 mL 3.5266 mL
20 mM 0.1058 mL 0.5290 mL 1.0580 mL 2.6449 mL
25 mM 0.0846 mL 0.4232 mL 0.8464 mL 2.1160 mL
30 mM 0.0705 mL 0.3527 mL 0.7053 mL 1.7633 mL
40 mM 0.0529 mL 0.2645 mL 0.5290 mL 1.3225 mL
50 mM 0.0423 mL 0.2116 mL 0.4232 mL 1.0580 mL
60 mM 0.0353 mL 0.1763 mL 0.3527 mL 0.8816 mL
80 mM 0.0264 mL 0.1322 mL 0.2645 mL 0.6612 mL
100 mM 0.0212 mL 0.1058 mL 0.2116 mL 0.5290 mL
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Y134 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Y134849662-80-2Y 134Y-134Estrogen Receptor/ERRoestrogenERSERMERαERβbreastcancerInhibitorinhibitorinhibit

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