Cefepime-d₈ sulfate 

Cefepime-d₈ (BMY-28142-d₈) sulfate is deuterium labeled Cefepime sulfate. Cefepime sulfate is a broad-spectrum, blood-brain barrier-permeable cephalosporin antibiotic with hPON1 inhibitory activity, with an IC₅₀ of 21.115 mM and a K_i of 35.092 mM. Cefepime sulfate inhibits hPON1 via a non-competitive mechanism and blocks GABA_A receptors. Cefepime sulfate penetrates the outer membrane of Gram-negative bacteria, inhibits the growth of Gram-positive and Gram-negative bacteria, and does not induce the production of β-lactamase.

1. This compound can be used as a tracer.
2. This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

586.69

C₁₉H₁₈D₈N₆O₉S₃

131857-33-5

107648-78-2

Solid

Off-white to light yellow

OC(C1=C(C[N+]2(C([2H])([2H])C([2H])([2H])C([2H])([2H])C2([2H])[2H])C)CS[C@@]([C@@H]3NC(/C(C4=CSC(N)=N4)=N\OC)=O)([H])N1C3=O)=O.O=S([O-])(O)=O

Room temperature in continental US; may vary elsewhere.

-20°C, stored under nitrogen, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen, away from moisture)

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-238.  [Content Brief]