Cefquinome sulfate
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Cefquinome sulfate is a broad-spectrum cephem antibiotic that has inhibitory effects on a variety of Gram-positive and Gram-negative bacteria, including Staphylococci, Streptococci, Pseudomonas, and Enterobacteriaceae.
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- Pureté: 98.01%
- CAS No.: 118443-89-3
- Formule: C23H26N6O9S3
- Masse moléculaire:626.68
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Stockage:
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
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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Activité biologique
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Chemical Information
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Solvant et solubilité
- Pureté et documentation
- Références
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Help & FAQs
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Activité biologique
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β-lactam |
Cefquinome sulfate binds to penicillin-binding proteins (PBPs), thereby inhibiting the synthesis of bacterial cell walls[3].
Cefquinome sulfate inhibits methicillin susceptible S. aureus, Streptococcus spp., Enterococci, E. coli, Salmonella spp., Klebsiella spp., S. marcescens, Enterobacter spp., Citrobacter spp., P. mirabilis, Indole-positive Proteus spp., P. aeruginosa with MICs of 0.006-6.25 μg/mL[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.
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Animal Model:K. pneumoniae-infected rats models[2]
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Dosage:12.5 mg/kg
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Administration:tail vein injection, single dose
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Result:Reduced lung inflammatory cell infiltration and lung tissue damage.
Inhibited the expression of inflammatory factors TNF-α, IL-1β and IL-8, promoted the expression of anti-inflammatory factors IL-4, IL-10 and IL-13.
Chemical Information
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CAS No. 118443-89-3
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Appearance Solid
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Masse moléculaire 626.68
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Formule C23H26N6O9S3
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Color Off-white to light yellow
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SMILES
O=C1[C@@H](NC(/C(C2=CSC(N)=N2)=N\OC)=O)[C@@]3([H])SCC(C[N+]4=C5CCCCC5=CC=C4)=C(C(O)=O)N13.O=S(O)([O-])=O
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Solvant et solubilité
DMSO : 125 mg/mL (199.46 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 2 mg/mL (3.19 mM; Need ultrasonic)
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 and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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 and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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: ≥ 2.08 mg/mL (3.32 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (3.32 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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 and light)
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.
Pureté et documentation
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Fiche technique (277 KB)
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SDS (762 KB)
- English - EN (762 KB)
- Français - FR (762 KB)
- Deutsch - DE (762 KB)
- Norwegian - NO (762 KB)
- Español - ES (762 KB)
- Swedish - SV (762 KB)
- Italian - IT (762 KB)
- Korean - KR (762 KB)
- Portuguese - PT (762 KB)
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Instruction de manipulation (2659 KB)
Références
[1]. Chin NX, et al. In vitro activity of cefquinome, a new cephalosporin, compared with other cephalosporin antibiotics. Diagn Microbiol Infect Dis. 1992 May-Jun;15(4):331-7. [Content Brief]
[2]. Qu S, et al., Cefquinome-loaded microsphere formulations against Klebsiella pneumonia infection during experimental infections. Drug Deliv. 2018 Nov;25(1):909-915. [Content Brief]
[3]. Limbert M, et al., Antibacterial activities in vitro and in vivo and pharmacokinetics of cefquinome (HR 111V), a new broad-spectrum cephalosporin. Antimicrob Agents Chemother. 1991 Jan;35(1):14-9. [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 (sealed storage, away from moisture and light). 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 |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 1.5957 mL | 7.9786 mL | 15.9571 mL | 39.8928 mL |
| DMSO | 5 mM | 0.3191 mL | 1.5957 mL | 3.1914 mL | 7.9786 mL |
| 10 mM | 0.1596 mL | 0.7979 mL | 1.5957 mL | 3.9893 mL | |
| 15 mM | 0.1064 mL | 0.5319 mL | 1.0638 mL | 2.6595 mL | |
| 20 mM | 0.0798 mL | 0.3989 mL | 0.7979 mL | 1.9946 mL | |
| 25 mM | 0.0638 mL | 0.3191 mL | 0.6383 mL | 1.5957 mL | |
| 30 mM | 0.0532 mL | 0.2660 mL | 0.5319 mL | 1.3298 mL | |
| 40 mM | 0.0399 mL | 0.1995 mL | 0.3989 mL | 0.9973 mL | |
| 50 mM | 0.0319 mL | 0.1596 mL | 0.3191 mL | 0.7979 mL | |
| 60 mM | 0.0266 mL | 0.1330 mL | 0.2660 mL | 0.6649 mL | |
| 80 mM | 0.0199 mL | 0.0997 mL | 0.1995 mL | 0.4987 mL | |
| 100 mM | 0.0160 mL | 0.0798 mL | 0.1596 mL | 0.3989 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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