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| 25g |
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Tosufloxacin tosylate hydrate, formerly known as T-3262 and A-61827, is a potent fluoroquinolone antibiotic used to treat susceptible infections. It has a controversial safety profile in relation to other fluoroquinolones. It is associated with severe thrombocytopenia and nephritis, and hepatotoxicity. It is sold in Japan under the brand name Ozex.
| Targets |
Quinolone
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|---|---|
| ln Vitro |
Antibacterial activities against S. aureus, Staphylococcus epidermidis, streptococci, enterococci, Bacteroides fragilis, Clostridium difficile, and Clostridium perfringens have been demonstrated by tosufloxacin tosylate hydrate (T-3262) (0.05-3.13 μg/mL; 18 h)[2].
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| ln Vivo |
The antibacterial activity of tosufloxacin tosylate hydrate (T-3262) (oral gavage; 0.16–13.39 mg/kg; once) against S. aureus, E. coli, and P. aeruginosa has been demonstrated in vivo[2].
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| Cell Assay |
Cell Line: Staphylococcus epidermidis, S. aureus, Bacteroides fragilis, Clostridium difficile, and Clostridium perfringens are among the bacteria that can cause food poisoning.
Concentration: 0.05-3.13 μg/mL Incubation Time: 18 hours Result: Showed MIC90s (MICs for 90% of the isolates tested) ranging from 0.05 to 1.56 μg/mL for S. aureus, Staphylococcus epidermidis, streptococci, and enterococci. Showed MIC90s of 1.56, 3.13, and 0.20 μg/mL for Bacteroides fragilis, Clostridium difficile, and Clostridium perfringens, respectively. |
| Animal Protocol |
Animal Model: Male Slc:ICR mice infected with S. aureus[2]
Dosage: 1.27-2.15 mg/kg Administration: Oral gavage; 1.27-2.15 mg/kg; once Result: demonstrated a 1.62 mg/kg (body weight) 50% effective dose (ED50) seven days post-infection. revealed a MIC of 0.0125 μg/mL. |
| References |
| Molecular Formula |
C26H25F3N4O7S
|
|---|---|
| Molecular Weight |
594.56
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| CAS # |
1400591-39-0
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| Related CAS # |
Tosufloxacin;100490-36-6;Tosufloxacin tosylate;115964-29-9
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| SMILES |
CC1=CC=C(S(=O)(O)=O)C=C1.O=C(C2=CN(C3=CC=C(F)C=C3F)C4=C(C=C(F)C(N5CC(N)CC5)=N4)C2=O)O.O
|
| InChi Key |
SSULTCPIIYRGFQ-UHFFFAOYSA-N
|
| InChi Code |
InChI=1S/C19H15F3N4O3.C7H8O3S.H2O/c20-9-1-2-15(13(21)5-9)26-8-12(19(28)29)16(27)11-6-14(22)18(24-17(11)26)25-4-3-10(23)7-25;1-6-2-4-7(5-3-6)11(8,9)10;/h1-2,5-6,8,10H,3-4,7,23H2,(H,28,29);2-5H,1H3,(H,8,9,10);1H2
|
| Chemical Name |
7-(3-aminopyrrolidin-1-yl)-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,8-naphthyridine-3-carboxylic acid;4-methylbenzenesulfonic acid;hydrate
|
| Synonyms |
A-61827 tosylate hydrateA61827 tosylate hydrateA 61827 tosylate hydrateT-3262T 3262
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~12.5 mg/mL (~21.02 mM)
H2O : ~1 mg/mL (~1.68 mM) |
|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: 1.25 mg/mL (2.10 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 12.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 1.25 mg/mL (2.10 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 12.5 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 1.25 mg/mL (2.10 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 1.6819 mL | 8.4096 mL | 16.8192 mL | |
| 5 mM | 0.3364 mL | 1.6819 mL | 3.3638 mL | |
| 10 mM | 0.1682 mL | 0.8410 mL | 1.6819 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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