| CAS Number | 103060-53-3 |
|---|---|
| Molecular Formula | C72H101N17O26 |
| Molecular Weight | 1620.693 |
| InChI Key | DOAKLVKFURWEDJ-RWDRXURGSA-N |
| LogP | -2.41 |
| Synonyms |
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Applications:
HPLC Determination of Daptomycin on Primesep 100 column
August 4, 2021
HPLC Method for Daptomycin on Primesep 100 by SIELC Technologies

High Performance Liquid Chromatography (HPLC) Method for Analysis Daptomycin
Daptomycin is a cyclic lipopeptide antibiotic with the chemical formula C72H101N17O26. It displays a dose-dependent killing activity against a broad range of gram-positive bacteria. It has only minimal activity against anaerobic bacteria and no activity against gram-negative bacteria.
Daptomycin can be retained on the Primesep 100 mixed-mode column using an isocratic analytical method with a simple mobile phase of water, acetonitrile (MeCN, ACN), and sulphuric acid (H2SO4) buffer. The analysis method can be UV detected at 200 nm.
| Column | Primesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | MeCN/H2O – 45/55% |
| Buffer | H2SO4 – 0.2% |
| Flow Rate | 1.0 ml/min |
| Detection | UV 200 nm |
| Class of Compounds |
Drug |
| Analyzing Compounds | Daptomycin |
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
Separation of Daptomycin on Newcrom R1 HPLC column
February 16, 2018
Daptomycin can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.
Application Column
Newcrom R1
The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.
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