Used in biomedical research to quantitatively measure endomorphin-2 levels in biological samples such as plasma, serum, or tissue homogenates. This kit is essential for studying pain regulation, opioid receptor activity, and neuroendocrine function. It supports research into chronic pain conditions, addiction mechanisms, and the role of endogenous opioids in stress and inflammation. The assay enables high-throughput analysis with high sensitivity and specificity, making it suitable for both preclinical studies and clinical investigations related to the central nervous system and pain management therapies.