Form
Powder
Appearance
White to grey-yellow powder
Source
Synthetic
Water Content (Karl Fisher)
≤3.0%
pH
5.5- 7.5
Assay
≥95.0% (on dried basis)
Residual Solvents
≤0.5%
Ceftiofur sodium is a third generation cephalosporin antibiotic commonly used in veterinary medicine.
TOKU-E Company offers two forms of ceftiofur: Ceftiofur sodium (C061) and ceftiofur hydrochloride (C228). Ceftiofur sodium is freely soluble in aqueous solution, while ceftiofur hydrochloride is insoluble in water.
104010-37-9
C19H16N5NaO7S3
545.54 g/mol
Like β-lactams, cephalosporins interfere with PBP (penicillin binding protein) activity involved in the final phase of peptidoglycan synthesis. PBP’s are enzymes which catalyze a pentaglycine crosslink between alanine and lysine residues providing additional strength to the cell wall. Without a pentaglycine crosslink, the integrity of the cell wall is severely compromised and ultimately leads to cell lysis and death. Resistance to cephalosporins is commonly due to cells containing plasmid encoded β-lactamases. Like many cephalosporins, ceftiofur is resistant to β-lactamases.
-20°C
2941.90.5000
Ceftiofur is a broad spectrum antibiotic targeting a wide variety of gram positive and gram negative bacteria.
Powder
White to grey-yellow powder
Synthetic
≤3.0%
5.5- 7.5
≥95.0% (on dried basis)
≤0.5%