Product Description: Cloxacillin-13C4 (sodium) is 13C labeled Cloxacillin (sodium)[1].
Formula: C15 13C4H17ClN3NaO5S
References: [1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.