英文别名N-Acetylthyroxine; Levothyroxine Sodium Impurity E; N-Acetyl-T4; Levothyroxine N-Acetyl Impurity; Levothyroxine Related Compound 5 [N-Acetyl-O-(4-Hydroxy-3,5-Diiodophenyl)-3,5-Diiodo-L-Tyrosine]; Levothyroxine N-acetamide Impurity; N-Acetyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine; (S)-2-Acetamido-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid 
