Doxycycline: Complete Guide to Applications and Usage Protocols
Doxycycline is a versatile tetracycline antibiotic with the molecular formula C22H24N2O8. Originally developed as an antibiotic, this compound has shown remarkable versatility in various applications. Today, it’s recognized not only for its primary antibacterial properties but also for its potential in antiviral, antiparasitic, and immunomodulatory areas.
Chemical Properties and Quality Assurance
Appearance: Yellow crystalline powder
Molecular Mass: 444.435 g/mol
Melting Point: 201-204°C (with decomposition)
pH: 5.0-6.5 (1% aqueous suspension)
Solubility: Moderately soluble in water (50 mg/ml at pH 2.5), highly soluble in methanol (>100 mg/ml)
Stability: Most stable at pH 4-7, rapid degradation at pH <2 and >10
Spectral Properties: UV absorption maximum at 275 nm and 345 nm