Used in biomedical research to quantify Cathepsin C levels in biological samples such as serum, plasma, and tissue homogenates. Helps in studying inflammatory diseases, particularly those involving immune cell activation like periodontitis, rheumatoid arthritis, and chronic obstructive pulmonary disease (COPD). Supports research on protease activity in cancer progression and neurodegenerative disorders. Enables high-throughput screening in drug development targeting cysteine proteases. Provides a reliable, sensitive method for monitoring disease biomarkers and evaluating therapeutic efficacy in preclinical studies.