Product Description: Felodipine-13C4,d3 is 13C labeled Felodipine[1].
Formula: C14 13C4H16D3Cl2NO4
References: [1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.