Product Description: H-Tyr(3-I)-OH-13C6 is the 13C-labeled H-Tyr(3-I)-OH. H-Tyr(3-I)-OH is a potent and effective tyrosine hydroxylase inhibitor. H-Tyr(3-I)-OH is an intermediate in the production of thyroid hormones and has a role as a human or mouse metabolite[1][2].