JWH 018 N-pentanoic acid metabolite-d5 contains five deuterium atoms at the 2, 4, 5, 6, and 7 positions. It is intended for use as an internal standard for the quantification of JWH 018 N-pentanoic acid metabolite by GC- or LC-mass spectrometry (MS). JWH 018 is a mildly selective agonist of the peripheral cannabinoid (CB2) receptor, derived from the aminoalkylindole WIN 55,212-2. The Ki values for binding central cannabinoid (CB1) and CB2 receptors are 9.0 and 2.94 nM, respectively, for a CB1:CB2 ratio of 3.06.1 JWH 018 is one of several synthetic CBs which have been included in smoking mixtures. JWH 018 N-pentanoic acid metabolite is a minor urinary metabolite of JWH 018, characterized by carboxylation of the N-alkyl chain.2 In urine samples, this metabolite is almost completely glucuronidated.2
1.Aung, M.M., Griffin, G., Huffman, J.W., et al.Influence of the N-1 alkyl chain length of cannabimimetic indoles upon CB1 and CB2 receptor bindingDrug Alcohol Depend.60(2)133-140(2000)
2.Sobolevsky, T., Prasolov, I., and Rodchenkov, G.Detection of JWH-018 metabolites in smoking mixture post-administration urineForensic Sci. Int.200(1-3)141-147(2010)
