Niflumic Acid-d₅ 

Niflumic Acid-d₅ is the deuterium labeled Niflumic acid. Niflumic acid, a Ca2+-activated Cl- channel blocker, is an analgesic and anti-inflammatory agent used in the treatment of rheumatoid arthritis[1][2].

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.

287.25

C₁₃H₄D₅F₃N₂O₂

1794811-58-7

4394-00-7

N(C1=C(C(O)=O)C(=C(C(=N1)[2H])[2H])[2H])C2=CC(C(F)(F)F)=CC(=C2[2H])[2H]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.  [Content Brief]

  [2]. Criddle, D.N., et al., Inhibitory action of niflumic acid on noradrenaline- and 5-hydroxytryptamine-induced pressor responses in the isolated mesenteric vascular bed of the rat. Br J Pharmacol, 1997. 120(5): p. 813-8.  [Content Brief]

  [3]. Jabeen, T., et al., Non-steroidal anti-inflammatory drugs as potent inhibitors of phospholipase A2: structure of the complex of phospholipase A2 with niflumic acid at 2.5 Angstroms resolution. Acta Crystallogr D Biol Crystallogr, 2005. 61(Pt 12): p. 1579-  [Content Brief]

  [4]. Picollo, A., et al., Mechanism of interaction of niflumic acid with heterologously expressed kidney CLC-K chloride channels. J Membr Biol, 2007. 216(2-3): p. 73-82.  [Content Brief]