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MSU-43557

Catalog No.GC78828 Copy One-Click Copy Product Info

MSU-43557 is a Mycobacterium abscessus MmpL3 ( MAB_4508 ) inhibitor and bactericidal agent.

Products are for research use only. Not for human use. We do not sell to patients.

MSU-43557 Chemical Structure

Cas No.: 2919699-59-3

Size Price Stock Qty
10mM (in 1mL DMSO)
$101.00
In stock
5mg
$92.00
In stock
10mg
$149.00
In stock
25mg
$298.00
In stock
50mg
$474.00
In stock

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Sample solution is provided at 25 µL, 10mM.



Description of MSU-43557

MSU-43557 is a Mycobacterium abscessus MmpL3 ( MAB_4508 ) inhibitor and bactericidal agent. MSU-43557 inhibits MmpL3 function, disrupts trehalose monomycolate synthesis, and reduces biofilm-associated Mycobacterium abscessus viability. MSU-43557 exerts bactericidal activity against intracellular Mycobacterium abscessus. MSU-43557 shows low eukaryotic cytotoxicity and low Mycobacterium abscessus resistance frequency. MSU-43557 can be used for the research of mycobacterium abscessus infection [1].

In Vitro, MSU-43557 (80 μM-0.08 nM; 3 d) potently inhibits the growth of Mycobacterium abscessus ATCC 19977 in vitro, and exhibits time-dependent bactericidal activity at a concentration of 5× MIC; meanwhile, MSU-43557 potently inhibits strains of Mycobacterium tuberculosis, Mycobacterium abscessus and Mycobacterium smegmatis, shows no activity against non-mycobacterial species within 80 μM, and displays variable inhibitory activity against clinically isolated multidrug-resistant Mycobacterium abscessus strains[1]. MSU-43557 (0.18 nM-160 μM; 3 d) disrupts mature Mycobacterium abscessus biofilms with an EC50 of 8.66 μM; it also reduces bacterial viability within biofilms, with a corresponding EC50 of 0.16 μM[1]. MSU-43557 (0.18 nM-160 μM; 3 d) kills intracellular Mycobacterium abscessus ATCC 19977 in mouse bone marrow-derived macrophages with an EC50 of 0.39 μM, and exhibits low cytotoxicity toward mouse bone marrow-derived macrophages[1].

References:
[1]. Abdalla BJ, et al. Defining the Mechanism of Action and Resistance of New Mycobacterium abscessus MmpL3 Inhibitors. ACS Chem Biol. 2026 Feb 20;21(2):284-301.

Chemical Properties of MSU-43557

Cas No. 2919699-59-3 SDF
Formula C15H17Cl2N3O M.Wt 326.22
Solubility DMSO: 100 mg/mL (306.54 mM; Need ultrasonic) Storage Store at -20°C
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of MSU-43557

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1 mg 5 mg 10 mg
1 mM 3.0654 mL 15.3271 mL 30.6542 mL
5 mM 613.1 μL 3.0654 mL 6.1308 mL
10 mM 306.5 μL 1.5327 mL 3.0654 mL
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In vivo Formulation Calculator (Clear solution) of MSU-43557

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

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Average Rating: 5 ★★★★★ (Based on Reviews and 30 reference(s) in Google Scholar.)

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