"A trustworthy partner for the IVD industry and R&D labs seeking premium immunoassay components."Henrik Christensen, CEO and owner of Kem-En-Tec Diagnostics


pNPP ONE™, ready-to-use substrate for colorimetric detection in ELISAs based on Alkaline Phosphatase labeled antibodies.

  • Ready-to-use, Mono-component, one-step chromogenic liquid substrate containing stabilized p-NitroPhenyl Phosphate
  • Negligible batch-to-batch variations
  • Superior background characteristics that determine a higher Signal-To-Noise ration
  • More robust and recommended in hot climate countries


  • Free of harmful organic solvents
  • Development time: 15-30 minutes
  • Non hazardous stop solution: 0,1 M NaOH


  • 3 years at 2-8° C


All products are available as OEM components or under our own Kem-En-Tec Diagnostics A/S label.

Cat # Unit
4401H 100 ml
4401L 500 ml
4401A 1000 ml
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