1. GPCR/G Protein
  2. GnRH Receptor
  3. Elagolix sodium

Elagolix sodium  (Synonyms: NBI-56418 sodium)

Cat. No.: HY-14369 Purity: 99.94%
COA Handling Instructions

Elagolix sodium is a human GnRH receptor (GnRHR) antagonist with an IC50 and Ki of 0.25 and 3.7 nM, respectively.

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

Elagolix sodium Chemical Structure

Elagolix sodium Chemical Structure

CAS No. : 832720-36-2

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Solid + Solvent
10 mM * 1 mL in DMSO
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Solution
10 mM * 1 mL in DMSO USD 86 In-stock
Solid
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10 mg USD 90 In-stock
50 mg USD 290 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Elagolix sodium:

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Elagolix sodium is a human GnRH receptor (GnRHR) antagonist with an IC50 and Ki of 0.25 and 3.7 nM, respectively.

IC50 & Target

IC50: 0.25 nM (GnRHR)[1]
Ki: 3.7 nM (GnRHR)[2]

In Vitro

Elagolix sodium is a human GnRH receptor (GnRHR) antagonist with an IC50 of 0.25 nM in Kinase assay. Elagolix sodium has advanced to phase 3 trials for the treatment of endometriosis and uterine fibroids. Elagolix sodium also shows NFAT inhibition with an IC50 of 5.4 nM and effectively blocks Ca2+ flux with an IC50 of 0.86 nM[1]. Kinase assay also demonstrates that Elagolix sodium is a human GnRH receptor (GnRHR) antagonist with a Ki value of 3.7 nM[2].

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

Clinical Trial
Molecular Weight

653.57

Formula

C32H29F5N3NaO5

CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=C(CCCN[C@@H](CN(C1=O)C(N(C(C)=C1C2=CC=CC(OC)=C2F)CC3=C(C=CC=C3F)C(F)(F)F)=O)C4=CC=CC=C4)O[Na]

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : ≥ 50 mg/mL (76.50 mM)

DMSO : 50 mg/mL (76.50 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.5301 mL 7.6503 mL 15.3006 mL
5 mM 0.3060 mL 1.5301 mL 3.0601 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
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Concentration
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Volume
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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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (3.83 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 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

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

    Solubility: ≥ 2.5 mg/mL (3.83 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 50 mg/mL (76.50 mM); Clear solution; Need ultrasonic

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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation

Purity: 99.94%

References
Kinase Assay
[2]

The affinity of Elagolix sodium for hGnRH-R is determined by a competitive displacement of the radioligand GnRH from membranes prepared from HEK293 cells stably transfected with the full-length human GnRH receptor[2].

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

Cell Assay
[2]

RBL-1 cells stably expressing the human cloned GnRH receptor are seeded into 96 well plates at a density of 15 000 cells per well in inositol-free DMEM containing 10% dialyzed FBS, 10 mM HEPES, 2 mM L-glutamine, 1 mM sodium pyruvate, 0.1 mM nonessential amino acids, and 50 μg/mL penicillin/streptomycin and are labeled for 48 h with 0.2 μCi myo-2-[3H]inositol. The cells are washed once in PBS and pretreated with assay buffer for 15 to 60 min at 37°C. The cells are then stimulated with GnRH (6 nM) in the presence or absence of Elagolix sodium and incubated for 60 min at 37°C[2].

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

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 (sealed storage, away from moisture). 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
H2O / DMSO 1 mM 1.5301 mL 7.6503 mL 15.3006 mL 38.2514 mL
5 mM 0.3060 mL 1.5301 mL 3.0601 mL 7.6503 mL
10 mM 0.1530 mL 0.7650 mL 1.5301 mL 3.8251 mL
15 mM 0.1020 mL 0.5100 mL 1.0200 mL 2.5501 mL
20 mM 0.0765 mL 0.3825 mL 0.7650 mL 1.9126 mL
25 mM 0.0612 mL 0.3060 mL 0.6120 mL 1.5301 mL
30 mM 0.0510 mL 0.2550 mL 0.5100 mL 1.2750 mL
40 mM 0.0383 mL 0.1913 mL 0.3825 mL 0.9563 mL
50 mM 0.0306 mL 0.1530 mL 0.3060 mL 0.7650 mL
60 mM 0.0255 mL 0.1275 mL 0.2550 mL 0.6375 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Elagolix sodium 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.

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Elagolix sodium
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