Overview
Fleroxacin is a synthetic fluoroquinolone antibiotic developed for its broad-spectrum antibacterial activity. It is part of the second generation of quinolones, which exhibit improved pharmacokinetic properties and expanded efficacy against a wider range of bacteria compared to earlier derivatives. Initially introduced in the late 1980s, fleroxacin has been used clinically to treat various infections, particularly in regions where bacterial resistance to other antibiotics is prevalent. Its mechanism of action involves inhibiting bacterial DNA gyrase and topoisomerase IV, essential enzymes for DNA replication and transcription.
Physical and Chemical Properties
Fleroxacin is a white to off-white crystalline powder with a molecular weight of 369.34 g/mol. It is slightly soluble in water but dissolves more readily in organic solvents such as methanol and dimethyl sulfoxide (DMSO). The compound has a melting point of approximately 260-262°C, indicating its stability under moderate thermal conditions. Its chemical structure includes a fluorine atom at the 6-position and a piperazinyl group at the 7-position, which enhance its antibacterial potency and spectrum. The trifluoromethyl group at the 8-position further contributes to its pharmacokinetic profile, including tissue penetration and half-life.
Main Applications
Fleroxacin is primarily used to treat bacterial infections caused by susceptible organisms. Its applications include respiratory tract infections (e.g., bronchitis, pneumonia), urinary tract infections, and skin/soft tissue infections. It is also effective against certain sexually transmitted diseases, such as gonorrhea. In veterinary medicine, fleroxacin has been explored for treating bacterial infections in livestock and pets, though its use is less common compared to human medicine. Its broad-spectrum activity makes it a valuable option in regions with high antibiotic resistance rates.
Safety and Storage
Fleroxacin should be handled with care to avoid unnecessary exposure. Common side effects include gastrointestinal disturbances (nausea, diarrhea), dizziness, and photosensitivity. Severe adverse reactions, though rare, may include tendonitis or CNS effects such as seizures. For storage, fleroxacin must be kept in a tightly sealed container in a cool, dry environment, protected from light and moisture. Bulk quantities should be stored in pharmaceutical-grade conditions to maintain stability and prevent degradation. Proper labeling and compliance with local hazardous material regulations are essential.
B2B Procurement Guide
When procuring fleroxacin, B2B buyers should prioritize suppliers with certifications such as Good Manufacturing Practice (GMP) or ISO standards. Key considerations include batch purity (typically ≥98%), residual solvent levels, and stability data. Request certificates of analysis (CoA) and regulatory documentation to ensure compliance with regional pharmaceutical laws. Pricing varies based on quantity and purity, with bulk purchases often discounted. Establish long-term contracts with reliable suppliers to mitigate supply chain disruptions. Due to its classification as a prescription drug, verify end-use restrictions and licensing requirements in your target market.