Used in research settings to quantify β2-microglobulin levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit enables the detection of rat β2-microglobulin, a key component of major histocompatibility complex class I molecules, allowing researchers to study immune system activation, renal function, and inflammatory responses in rodent models. Commonly applied in preclinical studies related to autoimmune diseases, transplantation, and kidney dysfunction where changes in β2-microglobulin expression serve as a biomarker. The assay provides a sensitive and specific means to monitor protein levels, supporting data collection in immunology, toxicology, and disease progression studies.