Ramelteon metabolite M-II-d3 is the deuterium labeled Ramelteon metabolite M-II. Ramelteon metabolite M-II is the major metabolite of Ramelteon, with IC₅₀s of 208 pM, 1470 pM for human melatonin receptors (MT₁ or MT₂). Ramelteon is a selective melatonin agonist^[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].

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

278.36

C₁₆H₁₈D₃NO₃

1246812-22-5

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]. Nishiyama K, et al. Pharmacological characterization of M-II, the major human metabolite of ramelteon. Pharmacology. 2014;93(3-4):197-201.