1057-47-2 3,5,3',5'-Tetraiodotyrosyltyrosine 3,5,3',5-Tetraiodo-tyr-tyr 3,5-Diiodo-L-tyrosyl-3,5-diiodo-L-tyrosine 3,5-Diiodo-tyr-3,5-diiodo-tyr 3,5-Diiodo-tyrosyl-3,5-diiodo-tyrosine L-Tyrosine, N-(3,5-diiodo-L-tyrosyl)-3,5-diiodo-