Used in biomedical research to quantify interhydroxyadrenaline (also known as normetanephrine) levels in rat biological samples such as plasma, serum, or tissue homogenates. This ELISA kit enables researchers to study catecholamine metabolism, adrenal function, and sympathetic nervous system activity in experimental models. It is particularly useful in studies related to stress response, hypertension, neurodegenerative diseases, and cardiovascular disorders. The assay provides a sensitive and specific measurement, allowing for high-throughput analysis in preclinical studies.