Product Name or Catalog Number:

Product Catalog
Home >


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.


To order this product, enter the quantity you wish to order in the QTY field and click the shopping cart icon. When finished, click My Shopping Cart to proceed to checkout or Continue Shopping to shop for more products.

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


N/A



Brochures and Studies BioSafety Level




N/A

Related Products
Z108 Nitrocef Matchbook™, chromogenic nitrocefin test for beta lactamase, on paper strip, 10 tests per package, by Hardy Diagnostics, freeze on arrival
Z51 Beta Lactamase Test, acidometric method, 20 tests per package, by Hardy Diagnostics