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Thermo Scientific™ Halt™ Protease and Phosphatase Inhibitor Cocktail, EDTA-free (100X)

Prevent protein degradation and stabilize phosphorylation with this all-in-one cocktail of protease and phosphatase inhibitors.

Supplier:  Thermo Scientific™ 78441

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Catalog No. PI78441

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The all-in-one Thermo Scientific™ Halt Protease and Phosphatase Inhibitor Cocktail provides the convenience of a single solution with full sample protection.

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This broad-spectrum Halt Protease and Phosphatase Inhibitor Cocktail is specifically optimized to protect proteins from degradation during extraction and purification. The cocktail contains inhibitors against the major classes of proteases and phosphatases, targeting aminopeptidases, cysteine and serine proteases and serine/threonine and protein tyrosine phosphatases. The 100X cocktails, available in regular and EDTA-free formulations and several package formats, are refrigerator-stable liquids that are very easy to use for nearly any sample or experimental scale.


  • Complete protection – all-in-one cocktail contains both protease and phosphatase inhibitors
  • Multiple package sizes – choose from four convenient packages sizes to match nearly any scale
  • Convenient – the 100X liquid formulation is much easier and more effective to use than individual inhibitors and other formats
  • Easy storage – aqueous-based format allows for convenient cold-room storage without freezing, by contrast with DMSO-based cocktails
  • Compatible – can be used in mass spectrometry (MS) because it does not contain AEBSF, which can cause peaks to shift
  • Validated – fully compatible with Thermo Scientific Pierce™ Cell Lysis Buffers


Formulations with and without supplementary vial of EDTA for metalloprotease inhibition, both of which are offered in four package sizes.

Storage Requirements:

Upon receipt store at 4°C. Do not freeze product.



Halt Protease and Phosphatase Inhibitor Cocktail, EDTA-Free
Upon receipt store at 4°C. Product shipped with an ice pack. Do not freeze product.
Protease Inhibitor, Phosphatase Inhibitor
1 mL
Protease and Phosphatase Inhibitor Cocktail
Lysis Buffer
Protease Inhibitor, Phosphatase Inhibitor


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For Research Use Only. Not for use in diagnostic procedures.