| CAS Number | 189279-58-1 |
|---|---|
| Molecular Formula | C18H12ClF3N4O4 |
| Molecular Weight | 440.8 |
| InChI Key | DYDCPNMLZGFQTM-UHFFFAOYSA-N |
| LogP | 2.7 |
| Synonyms |
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Applications:
Uv-Vis Spectrum of Delafloxacin
March 5, 2026
Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Delafloxacin check our HPLC Applications library
For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.
HPLC Method for Determination of Delafloxacin on Primesep 100 Column
September 21, 2022
HPLC Method for Delafloxacin on Primesep 100 by SIELC Technologies

Delafloxacin, also known as Baxdela, is a popular antibiotic with the chemical formula C18H12ClF3N4O4. It is used to treat skin infections from both gram-positive and gram-negative bacteria.
Delafloxacin can be retained and analyzed on a Primesep 100 mixed-mode stationary phase column using an isocratic analytical method with a simple isocratic mobile phase of water, Acetonitrile (MeCN), and a sulfuric acid (H2SO4) buffer. This analysis method can be UV detected at 290 nm with high resolution and peak symmetry.
| Column | Primesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | MeCN – 40% |
| Buffer | H2SO4 – 0.2% |
| Flow Rate | 1.0 ml/min |
| Detection | UV 290 nm |
| Class of Compounds | Drug |
| Analyzing Compounds | Delafloxacin |
Application Column
Primesep 100
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended

