Used in research settings to measure dehydroepiandrosterone sulfate (DHEA-S) levels in rat biological samples such as serum, plasma, or tissue extracts. This immunoassay kit enables endocrine researchers to study adrenal function, stress responses, and hormonal changes related to aging, metabolism, and neuroendocrine disorders in rat models. It is particularly useful in studies examining the hypothalamic-pituitary-adrenal (HPA) axis, immune modulation, and the role of DHEA-S in behavioral and physiological processes. The assay provides a sensitive and specific quantitative measurement, supporting high-throughput analysis in preclinical experiments.