triiodo 3,3',5'-thyronine;3,3′,5′-Triiodo-D-thyronine;REF DUPL: 3,3',5'-Triiodo-D-thyronine;Levothyroxine EP Impurity K (R-Isomer);D-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3-iodo-;(R)-2-amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3-iodophenyl)propanoic acid