Used to measure β-hexosaminidase (β-Hex) enzyme activity in rat biological samples such as serum, plasma, tissue homogenates, or cell cultures. This assay is commonly applied in research settings to study lysosomal storage disorders, neuroinflammation, and neurodegenerative diseases like Tay-Sachs or Sandhoff disease, where β-Hex activity is altered. It is also used in toxicology and pharmacology studies to evaluate the impact of drugs or toxins on lysosomal function in rat models. The kit enables quantitative analysis, supporting high-throughput screening and longitudinal studies in preclinical research.