Estradiol, labeled with tritium. 3H-estradiol (E2) is commonly used in radioimmunoassays for estradiol detection and quantitation, as well as in labeling studies.
Corticosterone, labeled with tritium. 3H-corticosterone is commonly used in stress hormone studies and radioimmunoassays (RIAs) for corticosterone detection.
Cholesteryl hexadecyl ether, labeled with tritium. 3H-CHE is a lipid marker that cannot undergo exchange with cellular lipids, nor can be metabolized, and is commonly used in lipolysis and uptake studies.