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Identification of monohydroxylated metabolites of cannabidiol formed by rat liver
The Journal of Pharmacy and Pharmacology
|April 1, 1976
Abstract:
Cannabidiol (CBD) was metabolized in vitro by rat liver enzymes. Unchanged CBD and eight monohydroxylated metabolites were isolated and positively identified. As previously reported, 7-hydroxy-CBD was the major metabolite. The second most abundant metabolite was 6alpha-hydroxy-CBD; whereas only a trace amount of 6beta-hydroxy-CBD was found. In addition hydroxylation occurred in all positions of the pentyl side chain, 4 inches-hydroxy-CBD being most abundant. 3 inches-Hydroxy-CBD was formed in half of the yield of 4 inches-hydroxy-CBD, while 1 inches-, 2 inches-, 5 inches-hydroxy-CBD were each formed in approximately one fourth of the yield of 4 inches-hydroxy-CBD.