Cat. No.: HY-158183

NMD670

Customer Review

Based on 1 Customer Validation

NMD670 is an orally active inhibitor of skeletal muscle specific chloride channel ClC-1 with an EC₅₀ of 1.6 μM. NMD670 enhances neuromuscular transmission and improves muscle contraction and strength. NMD670 can be used in the study of muscle weakness and muscle fatigue.

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

Purity: 99.60%
CAS No.: 2354321-33-6
Formula: C₁₂H₁₀BrNO₄
Molecular Weight:312.12

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

NMD670 Chemical Structure

CAS No.: 2354321-33-6

Size

Price

Stock

Quantity

Sample (0.1mg)

In-stock

(In Japan)

Apply Now

Get Quote Ask For Quote & Lead Time Consult sales personnel for more information Check price and availability Get Quote Ask For Quote & Lead Time Consult sales personnel for more information Check price and availability

Bulk Inquiry

Amount: USD 0.00

* Please select Quantity before adding items.

Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Bioz

Biological Activity

Description

IC₅₀ & Target

EC₅₀: 1.6 μM (ClC-1)^[1]

In Vitro

NMD670 (20 μM; 20-30 min) increases the amplitude of endplate potential, restores action potential excitation and enhances neuromuscular transmission in isolated muscle fibers of myasthenia gravis rats^[1].

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

In Vivo

NMD670 (20 mg/kg; oral administration; twice daily for 2 weeks) has an ameliorative effect in a rat model of myasthenia gravis^[1].
Pharmacokinetic Analysis in Rat and Dog^[1]

Species	Dose (mg/kg)	Oral Half-Life (h)	IV Half-Life (h)	IV distribution volume, V_SS (L/kg)	Oral volume of distribution, terminal, V_Z/F (L/kg)	Oral C_max (ng/mL)	T_max (h)	Oral AUC (ng·h/mL)	IV AUC (ng·h/mL)	Bioavailability, F (%)	IV Renal Clearance (mL/min/kg)
Female Rat	10	5.15	2.90	0.418	2.04	19300	0.5	39900	36300	109.9	2.48
Male Rat	10	2.96	3.48	0.624	1.72	6780	0.5	24800	35300	70.25	1.94
Male Beagle Dog	2	7.46	7.74	0.208	0.817	12100	0.5	42200	34200	123.4	0.602

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

Animal Model:

Myasthenia gravis rats^[1]
Dosage:

20 mg/kg
Administration:

Oral administration (p.o.); twice daily for two weeks
Result:

Enhanced grip strength and rotarod endurance in mice.

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 2354321-33-6
Appearance Solid
Molecular Weight 312.12
Formula C₁₂H₁₀BrNO₄
Color White to off-white
SMILES

OC([C@H](C)OC1=CC=C(Br)C=C1C2=NOC=C2)=O
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 (320.39 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

3.2039 mL

16.0195 mL

32.0390 mL

5 mM

0.6408 mL

3.2039 mL

6.4078 mL

10 mM

0.3204 mL

1.6019 mL

3.2039 mL

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

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

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

Stock Solution Working Solution

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 (8.01 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.

Protocol 2

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

Solubility: ≥ 2.5 mg/mL (8.01 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.

Protocol 3

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

Solubility: ≥ 2.5 mg/mL (8.01 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 Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

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).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (279 KB)
SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Portuguese - PT (251 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Skov M, et al. The ClC-1 chloride channel inhibitor NMD670 improves skeletal muscle function in rat models and patients with myasthenia gravis. Sci Transl Med. 2024 Mar 20;16(739):eadk9109. [Content Brief]

[2]. Chin E, et al. Safety, Pharmacokinetics, and Pharmacodynamics of a First-in-Class ClC-1 Inhibitor to Enhance Muscle Excitability: Phase I Randomized Controlled Trial. Clin Pharmacol Ther. 2024 Dec 9. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

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	3.2039 mL	16.0195 mL	32.0390 mL	80.0974 mL
	5 mM	0.6408 mL	3.2039 mL	6.4078 mL	16.0195 mL
	10 mM	0.3204 mL	1.6019 mL	3.2039 mL	8.0097 mL
	15 mM	0.2136 mL	1.0680 mL	2.1359 mL	5.3398 mL
	20 mM	0.1602 mL	0.8010 mL	1.6019 mL	4.0049 mL
	25 mM	0.1282 mL	0.6408 mL	1.2816 mL	3.2039 mL
	30 mM	0.1068 mL	0.5340 mL	1.0680 mL	2.6699 mL
	40 mM	0.0801 mL	0.4005 mL	0.8010 mL	2.0024 mL
	50 mM	0.0641 mL	0.3204 mL	0.6408 mL	1.6019 mL
	60 mM	0.0534 mL	0.2670 mL	0.5340 mL	1.3350 mL
	80 mM	0.0400 mL	0.2002 mL	0.4005 mL	1.0012 mL
	100 mM	0.0320 mL	0.1602 mL	0.3204 mL	0.8010 mL

Keywords

Product Name:
Cat. No.:
Quantity:
MCE Japan Authorized Agent:

Product Name:
CAS No.:
Species:
Purity:
Quantity:

NMD670

Membrane Transporter/Ion Channel Compound Library

Clinical Compound Library

Drug Repurposing Compound Library

Orally Active Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Inhibitors Library

Ion Channel Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Drug Repurposing Compound Library Plus

Clinical Compound Library Plus

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

NMD670

Membrane Transporter/Ion Channel Compound Library

Clinical Compound Library

Drug Repurposing Compound Library

Orally Active Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Inhibitors Library

Ion Channel Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Drug Repurposing Compound Library Plus

Clinical Compound Library Plus

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

NMD670 Related Classifications

Cat. No.: HY-158183