Form
Powder
Appearance
White or off-white powder
Source
Semi-synthetic
Water Content (Karl Fisher)
≤6.0%
Potency (on a dry basis)
≥770 µg/mg
pH
6.5-8.0
Carbenicillin disodium, USP is a carboxypenicillin antibiotic and is routinely used in microbiology and plant biology as a selection agent to isolate resistant E. coli and transformed plants, respectively.
Carbenicillin disodium, USP meets USP specifications.
For more carbenicillin products, click here.
4800-94-6
C17H16N2Na2O6S
422.36 g/mol
Carbenicillin interferes 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 β-lactams is commonly due to cells containing plasmid encoded β-lactamases.
-20°C
2941.10.5000
The activity of carbenicillin is limited to primarily gram negative bacteria including Pseudomonas aeruginosa and common enteric bacteria.
Powder
White or off-white powder
Semi-synthetic
≤6.0%
≥770 µg/mg
6.5-8.0