Used primarily in medical and biochemical research, this compound plays a critical role in studying thyroid hormone activity and metabolism. It is employed in laboratory experiments to investigate the effects of thyroid hormones on cellular processes, including metabolism, growth, and development. Researchers utilize it to understand thyroid-related disorders and to develop therapeutic strategies for conditions like hypothyroidism and hyperthyroidism. Additionally, it serves as a reference standard in analytical techniques such as HPLC and mass spectrometry to ensure accurate measurement of thyroid hormone levels in biological samples. Its application extends to the development of diagnostic assays for thyroid function testing.