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Nitrocef Disks, chromogenic nitrocefin test for beta lactamase, 50 disks per vial, by Hardy Diagnostics, freeze on arrival

New Easy-to-Use Disk Format. Hardy Diagnostics now offers a convenient way of testing ß-lactamase activity in bacteria. The rapid Nitrocef test consists of a disk that is impregnated with the Nitrocefin reagent, which is a chromogenic cephalosporin. This rapid test can yield clinically relevant information earlier than an MIC test. A positive ß-lactamase test can predict resistance to such antibiotics as penicillin, ampicillin, amoxicillin, and other ß-lactamase containing drugs for the following organisms:

• Neisseria gonorrhoeae
• Haemophilus spp.
• Moraxella (Branhamella) catarrhalis
• Staphylococcus spp.
• Enterococcus spp.
• Anaerobes (such as some species of Bacteroides, Porphyromonas, Clostridium, Fusobacterium, Prevotella)

The rapid Nitrocef Disk test can be used for all of the above organisms with results in 5 minutes or less, with the exception of some Staphylococcus spp. that may take up to one hour. The ß-lactamase test is preferred to disk diffusion and agar dilution for the detection of plasmid-mediated beta-lactamase resistance in gonococci. These HardyDisks™ are packages loose in a glass vial. For a cartridge (tube) configuration, see #231650.

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Cat No. Description Price Curr UOM Qty  
Z7301 Nitrocef disks
HDx, 50/vial F
$146.03 USD EA

Manufacturer Category Organism
Hardy Diagnostics: rapid tests, reagents, stains, supplies

HardyDisk AST

Test Disks, Strips & Reagents

Haemophilus spp.

Neisseria gonorrhoeae

Instructions for Use Video SDS


Brochures and Studies BioSafety Level


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