Taltirelin-13C,d3 (TA-0910-13C,d3) is 13C and deuterated labeled Taltirelin (HY-B0596). Taltirelin (TA0910) is a superagonist at thyrotropin-releasing hormone receptor (TRH-R) with an IC50 of 910 nM and EC50 of 36 nM for stimulating an increase in cytosolic Ca2+ concentration (Ca2+ release).