L-thyroxine alpha-amino-acid anion monocarboxylic acid anion L-thyroxine(1-) -1 chebi_ontology 775.86210 The alpha-amino-acid anion resulting from the removal of the proton from the carboxylic acid group of L-thyroxine. C15H10I4NO4 (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propionate PMID:17634708 L-thyroxine anion InChI=1S/C15H11I4NO4/c16-8-4-7(5-9(17)13(8)21)24-14-10(18)1-6(2-11(14)19)3-12(20)15(22)23/h1-2,4-5,12,21H,3,20H2,(H,22,23)/p-1/t12-/m0/s1 CHEBI:60302 N[C@@H](Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1)C([O-])=O 775.67941 XUIIKFGFIJCVMT-LBPRGKRZSA-M levothyroxine anion (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate levothyroxine(1-)