英文别名3,5,3',5'-Tetraiodo Thyroaldehyde; T4-aldehyde; Levothyroxine EP Impurity I; Benzaldehyde, 4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo-; Levothyroxine sodium impurity I; Levothyroxine Benzaldehyde Impurity; Levothyroxine–T4 Aldehyde; Levothyroxine EP Imp I 
