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Cat. No.: HY-187937

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EBL-3599

EBL‑3599 is an LpxH inhibitor derived from JEDI‑852 and JEDI‑1444 (HY-187940). EBL-3599 exhibits antibacterial activity against E. coli, K. pneumoniae, and efflux-deficient A. baumannii, P. aeruginosa, and P. mirabilis. EBL-3599 exhibits dose-dependent in vivo efficacy against E. coli and K. pneumoniae in a mouse peritonitis model. EBL-3599 can be used for research on bacterial infections and peritonitis.

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

CAS No.: 2851907-53-2
Formula: C₂₉H₃₇N₉O₅S₂
Molecular Weight:655.79

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Please store the product under the recommended conditions in the Certificate of Analysis.

EBL-3599 Chemical Structure

CAS No.: 2851907-53-2

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Use of MCE Products

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

Biological Activity
- Description
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Purity & Documentation
References
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Biological Activity

Description

Cellular Effect

Cell Line	Type	Value	Description	References
HepG2	IC50	55 μM	Cytotoxicity against human HepG2 cells assessed as viability reduction incubated 72 hrs. Cytotoxicity against human HepG2 cells assessed as viability reduction incubated 72 hrs.	38579010

In Vitro

Bacterial InfectionOthers

Bacterial Infection

EBL-3599 shows MICs of 2 μg/mL and 0.5-1 μg/mL against E. coli 25922 and K. pneumoniae 13883, respectively^[1].
EBL-3599 (4× MIC) selects lpxH mutants at a frequency of 1.6 × 10^-9 in K. pneumoniae ATCC 13883^[1].
EBL-3599 is a potent E. coli LpxH inhibitor with an IC₅₀ of 3.5 nM and inhibits the growth of E. coli 25922 with an MIC of 2.0 μg/mL^[2].
EBL-3599 has an MIC of 2 and 1 mg/L against E. coli ATCC 25922 and K. pneumoniae ATCC 13883, respectively, and an MIC of 0.25 mg/L against K. pneumoniae in 50% human serum^[3].
EBL-3599 shows MIC₉₀ values of 4 mg/L and 8 mg/L against E. coli isolates and K. pneumoniae isolates, respectively^[3].

Others

EBL-3599 is >25-fold more stable than JEDI-1444 in human and mouse liver microsomes^[1].
EBL‑3599 exhibits an IC₅₀ value of 55 μM against HepG2 cell viability following 72 h treatment^[3].
EBL-3599 is metabolically stable in human and mouse liver microsomes, with CL_int < 5 μL/mg/min in both species^[3].

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

In Vivo

Bacterial Infection

EBL-3599 (subcutaneous injection; single administration) exhibits potent activity in mouse E. coli peritonitis and K. pneumoniae peritonitis models, with ED₅₀ values of 20.0 mg/kg and 20.2 mg/kg, respectively^[3].

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

Related Protocols :

Chemical Information

CAS No. 2851907-53-2
Molecular Weight 655.79
Formula C₂₉H₃₇N₉O₅S₂
SMILES

N#CC1=CC(C)=NC(N2CCN(S(=O)(C3=CC=C(NC(C4=CC(CNCCCN)=CC=C4N(S(=O)(C)=O)C)=O)C=C3)=O)CC2)=N1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation

Handling Instructions (2659 KB)

References

[1]. Dome PA, et al. From Obscurity to Opportunity: LpxH Emerges as a Promising Antibiotic Target in the Battle against Gram-Negative Pathogens. ACS infectious diseases. 2025 Nov 14;11(11):2993-3008.

[2]. Ennis AF, et al. Design and Evaluation of Pyridinyl Sulfonyl Piperazine LpxH Inhibitors with Potent Antibiotic Activity Against Enterobacterales. JACS Au. 2024 Nov 25;4(11):4383-4393. [Content Brief]

[3]. Huseby DL, et al. Antibiotic class with potent in vivo activity targeting lipopolysaccharide synthesis in Gram-negative bacteria. Proceedings of the National Academy of Sciences of the United States of America. 2024 Apr 09;121(15):e2317274121.

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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.

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Biological Activity
- Description
- In Vitro
- In Vivo
Chemical Information
Purity & Documentation
References

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EBL-3599