176258-89-2

4-(4-Ethyl-2,6-diiodophenoxy)-2,6-diiodo-phenol is an?impurity of?Levothyroxine Sodium (T425601), a synthetic hormone that mimics a thyroid hormone secreted by the follicular cells to regulate a wide range of metabolic events in the human body. Levothyroxine Sodium is?used to treat hypothyroidism.