Used in immunological research to quantify levels of interleukin-23 (IL-23), specifically the p40 subunit, in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit enables researchers to study the role of IL-23 in inflammatory and autoimmune diseases, including psoriasis, inflammatory bowel disease, and multiple sclerosis. It is commonly used in preclinical studies to evaluate immune responses, assess therapeutic efficacy of anti-inflammatory drugs, and monitor cytokine expression patterns in experimental models. The assay provides high sensitivity and specificity, making it suitable for detecting low concentrations of IL-23p40 in mouse samples, thus supporting mechanistic studies in immunology and drug development.