Description
JWH 073 N-(4-hydroxybutyl) metabolite-d5 is intended for use as an internal standard for the quantification of JWH 073 N-(4-hydroxybutyl) metabolite by GC- or LC-MS. JWH 073 is a mildly selective agonist of the central cannabinoid (CB1) receptor derived from the aminoalkylindole WIN 55,212-2. The Ki values for binding CB1 and the peripheral cannabinoid (CB2) receptor are 8.9 and 38 nM, respectively for a CB1:CB2 ratio of 0.23.1 JWH 073 is one of several synthetic CBs which have been included in smoking mixtures. JWH 073 N-(4-hydroxybutyl) metabolite is expected to be a major urinary metabolite of JWH 073, characterized by monohydroxylation of the N-alkyl chain, based on the metabolism of the closely-related JWH 015 and JWH 018.2,3 In urine samples, this metabolite of JWH 018 is almost completely glucuronidated.3
References
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 binding Drug Alcohol Depend. 60(2),133-140(2000).
2. Zhang, Q., Ma, P., Cole, R.B., et al. Identification of in vitro metabolites of JWH-015, an aminoalkylindole agonist for the peripheral cannabinoid receptor (CB2) by HPLC-MS/MS Anal. Bioanal. Chem. 386(5),1345-1355(2006).
3. Sobolevsky, T., Prasolov, I., and Rodchenkov, G. Detection of JWH-018 metabolites in smoking mixture post-administration urine Forensic Sci. Int. 200(1-3),141-147(2010).
