N-tert-Butoxycarbonyl-O-triisopropylsilyl 3-Iodothyronamine-13C6 is an intermediate in the synthesis of 3-Iodothyronamine (4-Hydroxyphenyl-13C6) Hydrochloride (I720501). It is an isotope labeled analog of B690570, which is a protected thyroxin metabolite.