what is carboxy thc
Hello. delta-9 carboxy thc is the primary pharmacologically active component of marijuana.It is formed by oxidation of 11 hydroxy delta 9 thc in liver and is detectable in plasma and urine for a much longer time than delta 9THC and is therefore the metabolite tested for finding previous marijuana use.ased on these results it would seem that you son had used marijuana shortly before the test since the THC level is still elevated AND the relatively high level of carboxy THC suggest chronic use. Here is some information on the interpretation of levels and the impairment of driving.