Lascufloxacin
Based on 1 Customer Validation
Lascufloxacin (KRP-AM1977X) is a potent and orally active fluoroquinolone antibacterial agent. Lascufloxacin potently inhibits infections caused by various pathogens, including quinolone-resistant strains. Lascufloxacin has the potential for various infectious diseases treatment, including lower respiratory tract infections.
For research use only. We do not sell to patients.
- Purity: 98.04%
- CAS No.: 848416-07-9
- Formula: C21H24F3N3O4
- Molecular Weight:439.43
-
Storage:
-20°C, protect from light, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
-
Biological Activity
-
Chemical Information
-
Solvent & Solubility
- Purity & Documentation
- References
-
Help & FAQs
Biological Activity
|
Quinolone |
In the Gram-negative bacteria, Lascufloxacin shows antibacterial activities against Moraxella catarrhalis and β-lactamase-negative ampicillin-susceptible and ampicillin-resistant strains of Haemophilus influenzae, with an MIC90 value of 0.06 μg/mL in all cases. The MIC90 values against Enterobacter spp., Klebsiella pneumoniae, and Acinetobacter spp. are 0.25 μg/mL, 0.25 μg/mL, and 0.5 μg/mL, respectively. Lascufloxacin inhibits E. coli and P. aeruginosa with MIC90s of 0.25 μg/mL and 4 μg/mL, respectively. The MIC50 and MIC90 values of Lascufloxacin against M. pneumoniae are 0.12 μg/mL and 0.25 μg/mL, respectively. Lascufloxacin shows potent activity against macrolide-resistant M. pneumoniae isolates with an MIC90 of 0.12 μg/mL[1].
The MICs of Lascufloxacin against parent S. aureus strains ranged from 0.008 to 0.015 μg/mL, and those against fourth-step parC, gyrA, parC, and gyrA mutant strains are all 2 μg/mL. Lascufloxacin shows incomplete cross-resistance against the mutant strains. The activities of Lascufloxacin against first- and second-step mutant strains of S. pneumoniae are more potent than the activities of other quinolones, and the MICs of Lascufloxacin against gyrA and parC double mutants are 0.25 to 0.5 μg/mL[1].
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
-
CAS No. 848416-07-9
-
Appearance Solid
-
Molecular Weight 439.43
-
Formula C21H24F3N3O4
-
Color White to off-white
-
SMILES
O=C(C1=CN(CCF)C2=C(C=C(F)C(N3C[C@H](CNC4CC4)[C@H](F)C3)=C2OC)C1=O)O
-
Synonyms
KRP-AM1977
-
Shipping
Room temperature in continental US; may vary elsewhere.
-
Storage
-20°C, protect from light, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
Solvent & Solubility
DMSO : 250 mg/mL (568.92 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, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). 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 (protect from light, stored under nitrogen). 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)
Purity & Documentation
-
Data Sheet (273 KB)
-
SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
-
Handling Instructions (2659 KB)
References
[1]. Kishii R, et al. In Vitro Activities and Spectrum of the Novel Fluoroquinolone Lascufloxacin (KRP-AM1977). Antimicrob Agents Chemother. 2017 May 24;61(6). pii: e00120-17. [Content Brief]
[2]. Furuie H, et al. Intrapulmonary Pharmacokinetics of Lascufloxacin in Healthy Adult Volunteers. Antimicrob Agents Chemother. 2018 Mar 27;62(4). pii: e02169-17. [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, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). 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 | 2.2757 mL | 11.3784 mL | 22.7568 mL | 56.8919 mL |
| 5 mM | 0.4551 mL | 2.2757 mL | 4.5514 mL | 11.3784 mL | |
| 10 mM | 0.2276 mL | 1.1378 mL | 2.2757 mL | 5.6892 mL | |
| 15 mM | 0.1517 mL | 0.7586 mL | 1.5171 mL | 3.7928 mL | |
| 20 mM | 0.1138 mL | 0.5689 mL | 1.1378 mL | 2.8446 mL | |
| 25 mM | 0.0910 mL | 0.4551 mL | 0.9103 mL | 2.2757 mL | |
| 30 mM | 0.0759 mL | 0.3793 mL | 0.7586 mL | 1.8964 mL | |
| 40 mM | 0.0569 mL | 0.2845 mL | 0.5689 mL | 1.4223 mL | |
| 50 mM | 0.0455 mL | 0.2276 mL | 0.4551 mL | 1.1378 mL | |
| 60 mM | 0.0379 mL | 0.1896 mL | 0.3793 mL | 0.9482 mL | |
| 80 mM | 0.0284 mL | 0.1422 mL | 0.2845 mL | 0.7111 mL | |
| 100 mM | 0.0228 mL | 0.1138 mL | 0.2276 mL | 0.5689 mL |
Lascufloxacin Related Classifications
HY-16745 Related Classifications
Powered by Bioz