Delafloxacin meglumine
Based on 6 publication(s) in Google Scholar
Delafloxacin meglumine (ABT492 meglumine; RX-3341 meglumine; WQ-3034 meglumine) is a broad-spectrum fluoroquinolone antibiotic. Delafloxacin has a broad spectrum of activity that includes drug-resistant Staphylococcus aureus, Streptococcus pneumoniae, and Klebsiella pneumonia.
For research use only. We do not sell to patients.
- Purity: 99.87%
- CAS No.: 352458-37-8
- Formula: C25H29ClF3N5O9
- Molecular Weight:635.97
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) Delafloxacin meglumine
More- Nat Microbiol. 2023 Mar;8(3):410-423. [Abstract]
- Mater Today Commun. 2026 Jun 16;54:115566.
- Antimicrob Agents Chemother. 2022 Dec 20;66(12):e0092122. [Abstract]
- Microbiol Spectr. 2025 Oct 30:e0233825. [Abstract]
- Pathology. 2026 Feb 6:S0031-3025(26)00393-4. [Abstract]
- J Glob Antimicrob Resist. 2025 Aug 8:44:435-441. [Abstract]
All Antibiotic Isoforms
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Biological Activity
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Quinolone |
Delafloxacin (2.5, 10, 40, and 160 mg/kg; subcutaneous injection, 24 h) has moderate terminal elimination half-life (t1/2=0.68 h, 0.79 h, 0.69 h and 1.0 h for 2.5 mg/kg, 10 mg/kg, 40 mg/kg, and 160 mg/kg, respectively)[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Mice with a neutropenic murine lung infection model (four S. aureus, four S. pneumoniae, and four K. pneumoniae strains)[1]
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Dosage:The total daily doses vary from 0.156 to 640 mg/kg/24 h
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Administration:0.03 to 160 mg/kg are administered every 6 h (q6h) to infected mice by subcutaneous injection
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Result:Inhibited S. aureus strains ATCC 29213, ATCC 33591, MW2, R2527 with MICs of 0.008, 0.008, 0.004, and 0.004 mg/L, respectively.
Inhibited S. pneumoniae strains ATCC 10813, ATCC 49619, 145, and 1329 with MICs of 0.03, 0.125, 0.016, and 0.016 mg/L, respectively.
Inhibited K. pneumonia strains ATCC 43816, 4105, 4110, and 81-1260A with MICs of 0.06, 1, 0.5, and 0.06 mg/L, respectively.
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Animal Model:Neutropenic mice[1]
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Dosage:2.5, 10, 40, and 160 mg/kg; 0.2 mL
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Administration:Subcutaneous injection; 24 h
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Result:The maximum drug concentrations (Cmax) concentrations ranged from 2 to 71 mg/L. AUC0-∞ values ranged from 2.8 to 152 mg•h/L and were linear across the 2.5- to 160-mg dosing range. The elimination half-life (t1/2) ranged from 0.7 to 1 h.
Chemical Information
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CAS No. 352458-37-8
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Appearance Solid
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Molecular Weight 635.97
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Formula C25H29ClF3N5O9
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Color Off-white to yellow
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SMILES
O=C(C1=CN(C2=NC(N)=C(F)C=C2F)C3=C(C=C(F)C(N4CC(O)C4)=C3Cl)C1=O)O.O[C@H]([C@H]([C@@H]([C@@H](CO)O)O)O)CNC
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Synonyms
ABT492 meglumine; RX-3341 meglumine; WQ-3034 meglumine
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (6)
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Journal Impact Factor
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Most Recent
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Nat Microbiol
Characterization of antibiotic resistomes by reprogrammed bacteriophage-enabled functional metagenomics in clinical strains. [Abstract]2023 Mar;8(3):410-423. PMID: 36759752 -
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Antimicrob Agents Chemother
In Vitro and In Vivo Properties of CUO246, a Novel Bacterial DNA Gyrase/Topoisomerase IV Inhibitor. [Abstract]2022 Dec 20;66(12):e0092122. PMID: 36448795 -
Microbiol Spectr
Effect of pH on antimicrobial activity of delafloxacin against Escherichia coli isogenic strains carrying diverse chromosomal and plasmid-mediated fluoroquinolone resistance mechanisms. [Abstract]2025 Oct 30:e0233825. PMID: 41165356 -
Pathology
In vitro activity of recently introduced Gram-positive-specific antimicrobial agents against Australian methicillin-resistant Staphylococcus aureus isolates. [Abstract]2026 Feb 6:S0031-3025(26)00393-4. PMID: 41760492 -
J Glob Antimicrob Resist
Susceptibility of multidrug-resistant Escherichia coli and Klebsiella pneumoniae to oral antibiotics in Australia. [Abstract]2025 Aug 8:44:435-441. PMID: 40784378
Solvent & Solubility
DMSO : ≥ 6.4 mg/mL (10.06 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (3.93 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (3.93 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.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%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
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
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
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Data Sheet (283 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
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, 6 months; -20°C, 1 month (sealed storage, away from moisture). 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 | 1.5724 mL | 7.8620 mL | 15.7240 mL | 39.3100 mL |
| 5 mM | 0.3145 mL | 1.5724 mL | 3.1448 mL | 7.8620 mL | |
| 10 mM | 0.1572 mL | 0.7862 mL | 1.5724 mL | 3.9310 mL |
Delafloxacin meglumine Related Classifications
HY-14814A Related Classifications
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