Used in biomedical research to quantify estradiol receptor levels in tissue or cell samples, this ELISA kit enables accurate measurement of receptor expression in studies related to hormonal regulation, reproductive health, and endocrine disorders. It is widely applied in cancer research, particularly in breast cancer, where ER status determines treatment strategy. The kit supports high-throughput screening of drugs that modulate estrogen receptor activity and aids in understanding hormonal signaling pathways. Its sensitivity and specificity make it suitable for both academic and pharmaceutical research settings.