1 T3 3,5,3'triiodothyronine 1.000 2 T44 3,5,3',5'-tetraiodo-L-thyronine 0.958 3 T33 3,3'-deiodo-thyroxine 0.957 4 T2B 4-{4-[(2s)-2-amino-3-hydroxypropyl]-2,6-diiodophenoxy}phenol 0.913 5 UJF 4-[4-(2-azanylethyl)-2-iodanyl-phenoxy]phenol 0.783 6 4HY [4-(4-hydroxy-3-iodo-phenoxy)-3,5-diiodo-phenyl]-acetic acid 0.760 7 T4A 3,3',5,5'-tetraiodothyroacetic acid 0.731 8 TYN Aminobenzofurazan-O-tyrosine 0.704