Product Description: ETTVFENLPEK-13C11,15N2 (TFA) (ETTVFENLPEK-13C11,15N2 (TFA)) is a 13C- and 15N-labeled compound.
Formula: C47 13C11H91N11 15N2O21.xC2HF3O2
References: [1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-246.