Skip to product information
Request a Quote
Carbenicillin Disodium Salt Powder (CAS: 4800-94-6) – High-Quality Antibiotic
$29.00 AUD
Documentation
Carbenicillin Disodium Salt (CAT: ASA-2049) is a broad-spectrum β-lactam antibiotic of the penicillin class, active primarily against Gram-negative bacteria including Pseudomonas aeruginosa and enteric species. Its superior stability profile compared to ampicillin makes it the preferred selection agent in bacterial transformation, plant tissue culture, and contamination-control protocols. Supplied as a high-purity water-soluble powder, stocked in Australia for fast local delivery.
Product Specifications
| Catalog Number | ASA-2049 |
| CAS Number | 4800-94-6 |
| Chemical Class | β-Lactam antibiotic — penicillin group |
| Molecular Formula | C₁₇H₁₆N₂Na₂O₆S |
| Molecular Weight | 422.36 g/mol |
| Appearance | White to off-white crystalline powder |
| Solubility | Freely soluble in water; slightly soluble in ethanol |
| Reconstitution | Dissolve in sterile distilled water to desired concentration |
| Working Concentration | 50–100 µg/mL (typical for bacterial selection) |
| Spectrum | Broad-spectrum; primary activity against Gram-negative bacteria |
| Mechanism | Inhibits bacterial cell wall synthesis by binding penicillin-binding proteins (PBPs) |
| Storage | −20°C (long-term); 2–8°C (short-term, up to 2 weeks) |
Synonyms & Common Names
Carbenicillin disodium
Carbenicillin sodium
α-Carboxybenzylpenicillin disodium
Carboxybenzylpenicillin sodium
Key Features & Benefits
Superior stability vs ampicillin — significantly slower hydrolysis rate reduces satellite colony contamination in selection plates
Broad Gram-negative coverage — active against Pseudomonas aeruginosa, E. coli, and enteric species
Freely water-soluble — easy preparation of filter-sterilised stock solutions
Effective in plant tissue culture — suppresses Agrobacterium overgrowth post-transformation with low regeneration interference
Compatible with standard filter sterilisation (0.22 µm membrane)
Research Applications
Bacterial Transformation
Selection of transformed E. coli carrying carbenicillin-resistance plasmids; reduces satellite colonies vs ampicillin
Plant Tissue Culture
Elimination of Agrobacterium tumefaciens after plant transformation; low phytotoxicity at standard working concentrations
Microbiology Research
Selective culture media for Gram-negative bacteria; contamination control in mixed culture experiments
Antibiotic Resistance Studies
Model compound for β-lactam resistance research and β-lactamase activity assays
Molecular Cloning
Selectable marker maintenance in recombinant DNA cloning workflows
Pharmaceutical Research
Reference standard and model compound in antimicrobial pharmacology studies
Storage & Handling
Store powder at −20°C for long-term stability
Short-term storage at 2–8°C for up to 2 weeks
Prepared stock solutions: store at −20°C in aliquots; avoid repeated freeze-thaw cycles
Protect from moisture, light, and heat
Handle with gloves — avoid inhalation of powder dust
Regulatory & Safety
⚠️ Research Use Only
This product is intended exclusively for laboratory research use by qualified professionals. Not approved for human or veterinary therapeutic use, food, feed, or pharmaceutical manufacturing.
This product is intended exclusively for laboratory research use by qualified professionals. Not approved for human or veterinary therapeutic use, food, feed, or pharmaceutical manufacturing.
Regulatory Note
- Antibiotic compounds may be subject to regulatory controls — confirm compliance with local state and federal regulations before purchase
- Buyers are responsible for ensuring lawful use in accordance with applicable biosafety and laboratory regulations
- International customers must confirm import eligibility with local customs and regulatory authorities
✓ Research Grade
✓ COA Available
✓ Ships from Australia
✓ 1–3 Day Delivery