3',5'-Diiodo-L-tyrosine

3,5-Diiodo-L-tyrosine is a diiodotyrosine derivative of L-tyrosine, with iodine atoms at positions C-3 and C-5 of the benzyl group. It serves as an intermediate in thyroid hormone synthesis and is a human and mouse metabolite. It is a non-proteinogenic L-alpha-amino acid and the conjugate acid of 3,5-diiodo-L-tyrosinate(1-).