2. Membrane Transporter/Ion Channel Neuronal Signaling
  3. Sodium Channel GABA Receptor
  4. Riluzole hydrochloride

Riluzole hydrochloride  (Synonyms: PK 26124 hydrochloride)

Cat. No.: HY-B0211A Purity: 99.88%
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Riluzole hydrochloride is an anticonvulsant agent and belongs to the family of use-dependent Na+ channel blocker which can also inhibit GABA uptake with an IC50 of 43 μM.

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

Riluzole hydrochloride Chemical Structure

Riluzole hydrochloride Chemical Structure

CAS No. : 850608-87-6

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 61 In-stock
Solution
10 mM * 1 mL in DMSO USD 61 In-stock
Solid
50 mg USD 55 In-stock
100 mg USD 79 In-stock
500 mg USD 154 In-stock
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5 g   Get quote  

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Based on 9 publication(s) in Google Scholar

Other Forms of Riluzole hydrochloride:

Riluzole hydrochloride Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Riluzole hydrochloride is an anticonvulsant agent and belongs to the family of use-dependent Na+ channel blocker which can also inhibit GABA uptake with an IC50 of 43 μM.

IC50 & Target

Sodium channel[1]
IC50: 43 μM (GABA receptor)[1]
In Vitro

Riluzole hydrochloride is an anticonvulsant drug and belongs to the family of use-dependent Na+ channel blocker which can also inhibit GABA uptake with an IC50 of 43 μM. At 20 μM, Riluzole hydrochloride inhibits peak autaptic IPSCs only slightly but prolongs IPSCs reliably. It is also found that Riluzole hydrochloride causes a strong, concentration-dependent, readily reversible enhancement of responses to 2 μM GABA. At higher concentrations of Riluzole hydrochloride, especially 300 μM, GABA currents exhibit apparent desensitization during prolonged co-exposure to 2 μM GABA and Riluzole hydrochloride. The EC50 of Riluzole hydrochloride potentiation of GABA responses is about 60 μM[1].

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

Riluzole hydrochloride Related Antibodies
In Vivo

In normal na ve rats, systemic injection of Riluzole hydrochloride (8 mg/kg, i.p.; n=6 rats) decreases the duration of ultrasonic but not audible vocalizations evoked by noxious stimulation of the knee joint compare to vehicle tested in the same rats (P<0.05). Systemic application of Riluzole hydrochloride (8 mg/kg, i.p.; n=19 rats) decreases the vocalizations of arthritic rats compare to predrug and vehicle significantly (P<0.05 to 0.001). Riluzole hydrochloride administered into the CeA significantly decreases the duration of audible and ultrasonic vocalizations evoked by noxious stimulation of the knee compare to predrug values (n=8 rats; P<0.05 to 0.01)[2].

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

270.66

Formula

C8H6ClF3N2OS
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

NC1=NC2=CC=C(OC(F)(F)F)C=C2S1.Cl
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture

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

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (369.47 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 4.17 mg/mL (15.41 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.6947 mL 18.4734 mL 36.9467 mL
5 mM 0.7389 mL 3.6947 mL 7.3893 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, 1 year; -20°C, 6 months (sealed storage, away from moisture). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

* 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
=
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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (9.24 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 (9.24 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.
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).

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

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

Purity: 99.88%

COA (246 KB) LCMS (94 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

Two-electrode voltage clamp of Xenopus oocytes expressing exogenous GABAA receptors is performed with a CA-1B high performance oocyte clamp. The extracellular recording solution is ND-96 medium. Riluzole hydrochloride is applied from a common tip via a gravity-driven multibarrel drug-delivery system. Data acquisition and analysis are performed with pCLAMP 6 software[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

Adult male Sprague-Dawley rats (180 to 350 g) are housed in a temperature-controlled room and maintained on a 12-h day/night cycle with unrestricted access to food and water. Pain behaviors are measured before and 5 h after induction of a mono-arthritis in the left knee joint. To test the effects of systemic (intraperitoneal, i.p.) application of Riluzole hydrochloride, pain behaviors are measured 1 h postinjection of Riluzole hydrochloride in normal and arthritic animals. To determine effects of Riluzole hydrochloride into the amygdala, pain behaviors are measured 15 min after starting Riluzole hydrochloride application through a stereotaxically implanted microdialysis probe. To investigate site of action in the amygdala of systemically applied Riluzole hydrochloride, potassium channel blockers are administered into the amygdala 45 min after systemic application of Riluzole hydrochloride and pain behaviors are measured 15 min later, i.e., 1 h postinjection of riluzole (i.p.)[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, 1 year; -20°C, 6 months (sealed storage, away from moisture). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O / DMSO 1 mM 3.6947 mL 18.4734 mL 36.9467 mL 92.3668 mL
5 mM 0.7389 mL 3.6947 mL 7.3893 mL 18.4734 mL
10 mM 0.3695 mL 1.8473 mL 3.6947 mL 9.2367 mL
15 mM 0.2463 mL 1.2316 mL 2.4631 mL 6.1578 mL
DMSO 20 mM 0.1847 mL 0.9237 mL 1.8473 mL 4.6183 mL
25 mM 0.1478 mL 0.7389 mL 1.4779 mL 3.6947 mL
30 mM 0.1232 mL 0.6158 mL 1.2316 mL 3.0789 mL
40 mM 0.0924 mL 0.4618 mL 0.9237 mL 2.3092 mL
50 mM 0.0739 mL 0.3695 mL 0.7389 mL 1.8473 mL
60 mM 0.0616 mL 0.3079 mL 0.6158 mL 1.5394 mL
80 mM 0.0462 mL 0.2309 mL 0.4618 mL 1.1546 mL
100 mM 0.0369 mL 0.1847 mL 0.3695 mL 0.9237 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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Riluzole hydrochloride 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:

Riluzole850608-87-6PK 26124PK26124PK-26124Sodium ChannelGABA ReceptorNa channelsNa+ channelsGamma-aminobutyric acid Receptorγ-Aminobutyric acid ReceptorInhibitorinhibitorinhibit

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