英文别名Tetraiodothyroformic Acid; Levothyroxine EP Impurity H; THYROFORMIC ACID; Benzoic acid, 4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo-; 3,5-DIIODOTHYROFORMIC ACID; Levothyroxine T4 benzoic acid; TFA 4; 4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzoic acid 
