LED209
Based on 1 Customer Validation
LED209 is a potent and orally active small molecule inhibitor of the bacterial receptor QseC and a potent prodrug with high selectivity for QseC. LED209 inhibits the binding of signaling molecules to QseC. LED209 has antibacterial activity.
For research use only. We do not sell to patients.
- Purity: 98.40%
- CAS No.: 245342-14-7
- Formula: C19H17N3O2S2
- Molecular Weight:383.49
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
Biological Activity
LED209 (5 nM, 24 h) decreases biofilm formation in EAEC O104:H4 and several multidrug-resistant clinical isolates of rUTIs[1].
LED209 (7.5-30 μM, 0-80 h) reduces L. pneumophila replication with IC50 values of 1.27 µM and 50.6 µM respectively[2].
LED209 (5 pM) inhibits the binding of signals (norepinephrine) to QseC, preventing QseC autophosphorylation and inhibiting QseC-mediated activation of virulence gene expression[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 245342-14-7
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Appearance Solid
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Molecular Weight 383.49
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Formula C19H17N3O2S2
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Color White to off-white
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SMILES
O=S(C1=CC=C(NC(NC2=CC=CC=C2)=S)C=C1)(NC3=CC=CC=C3)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Solvent & Solubility
DMSO : 250 mg/mL (651.91 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (272 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Curtis MM, et al. QseC inhibitors as an antivirulence approach for Gram-negative pathogens. MBio. 2014 Nov 11;5(6):e02165. [Content Brief]
[2]. Harrison CF, et al. Adrenergic antagonists restrict replication of Legionella. Microbiology. 2015 Jul;161(7):1392-406. [Content Brief]
[3]. Rasko DA, et al. Targeting QseC signaling and virulence for antibiotic development. Science. 2008 Aug 22;321(5892):1078-80. [Content Brief]
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.6076 mL | 13.0381 mL | 26.0763 mL | 65.1907 mL |
| 5 mM | 0.5215 mL | 2.6076 mL | 5.2153 mL | 13.0381 mL | |
| 10 mM | 0.2608 mL | 1.3038 mL | 2.6076 mL | 6.5191 mL | |
| 15 mM | 0.1738 mL | 0.8692 mL | 1.7384 mL | 4.3460 mL | |
| 20 mM | 0.1304 mL | 0.6519 mL | 1.3038 mL | 3.2595 mL | |
| 25 mM | 0.1043 mL | 0.5215 mL | 1.0431 mL | 2.6076 mL | |
| 30 mM | 0.0869 mL | 0.4346 mL | 0.8692 mL | 2.1730 mL | |
| 40 mM | 0.0652 mL | 0.3260 mL | 0.6519 mL | 1.6298 mL | |
| 50 mM | 0.0522 mL | 0.2608 mL | 0.5215 mL | 1.3038 mL | |
| 60 mM | 0.0435 mL | 0.2173 mL | 0.4346 mL | 1.0865 mL | |
| 80 mM | 0.0326 mL | 0.1630 mL | 0.3260 mL | 0.8149 mL | |
| 100 mM | 0.0261 mL | 0.1304 mL | 0.2608 mL | 0.6519 mL |