Halt™ Protease Inhibitor Cocktail, EDTA-free (100X), 24 x 100 μL - FAQs

What are the compositions of the Halt Protease Inhibitor Cocktail, EDTA-Free (100X) (Cat. No. 87785) and Halt Protease Inhibitor Cocktail (100X) (Cat. No. 87786)?

Both formulations are the same and have the following composition:

• AEBSF – 100mM
• Aprotinin – 80µM
• Bestatin – 5mM
• E64 – 1.5mM
• Leupeptin – 2mM
• Pepstatin A – 1mM

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

What is the shelf life of Halt Protease Inhibitor Cocktail, EDTA-free (100X) (Cat. No. 78425)?

The Halt Protease Inhibitor Cocktail, EDTA-free (100X) (Cat. No. 78425) is covered under our general 1-year warranty and is guaranteed to be fully functional for 12 months from the date of shipment, if stored as recommended. Please see section 8.1 of our Terms & Conditions of Sale for more details.

Can I use just part of the Pierce Protease Inhibitor XL Capsules, EDTA-Free and save part of the capsule for later use?

We do not recommend “splitting” the capsule into smaller portions. Researchers using less than 500 mL should choose a different format (liquid or tablet) of protease inhibitors.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

What formats of protease inhibitors do you offer?

We offer standalone protease inhibitors (AEBSF, Aprotinin, PMSF, EDTA, etc.), as well as cocktails or combinations of protease inhibitors in liquid, tablet, and larger capsule formats. These cocktails of protease inhibitors can also be purchased in combination with a cocktail of phosphatase inhibitors, in both liquid and tablet form, for even greater convenience.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.