3-Methylxanthine-13C4,15N3 is the 13C-labeled and 15N-labeled 3-Methylxanthine. 3-Methylxanthine, a xanthine derivative, is a cyclic guanosine monophosphate (GMP) inhibitor, with an IC₅₀ of 920 μM on guinea-pig isolated trachealis muscle.

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].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

173.09

C₂¹³C₄H₆N¹⁵N₃O₂

1173018-93-3

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.

  [2]. Tanaka H, et al. Inhibition of cyclic GMP phosphodiesterase by xanthine derivatives relaxes guinea-pig trachealis smooth muscle. Clin Exp Pharmacol Physiol. 1991 Mar;18(3):163-8.

  [3]. Yamamoto K, et al. Neurotoxic convulsions induced by theophylline and its metabolites in mice. Biol Pharm Bull. 1996 Jun;19(6):869-72.