Z-Arg-Arg-pNA (Cathepsin B substrate)

Product Number: 866-27


CAS Number: 201807-90-1
Molecular Weight: 584.28
Salt Form: HCl
Purity: >96%
Sequence (3-letter): Z-Arg-Arg-pNA
Sequence (1-letter): Z-RR-pNA
Storage: -20 °C or below

Z-RR-pNA is a colorimetric substrate for Cathepsin B. Cathepsin B is a lysosomal cysteine protease with a role in intracellular protein degradation. Cathepsin B crosses the blood-brain barrier and elevated levels are implicated in many neurological maladies including traumatic brain injury, epilepsy, and Alzheimer’s disease.

Activity is quantified by the release of p-nitroaniline which is measured by absorbance at 405 nm.




Enzyme Substrates

Shipping Temp

Ambient Temperature


-20 °C or below

Shopping Cart
Scroll to Top

Technical Support

Bulk & Custom Orders