Cocaine metabolism in man: identification of four previously unreported cocaine metabolites in human urine.

Abstract

Cocaine and 11 of its metabolites were identified in a urine specimen from a cocaine user. Four of the metabolites are reported for the first time: ecgonidine, norecgonidine methyl ester, norecgonine methyl ester, and m-hydroxy-benzoylecgonine. The structures of the newly identified metabolites were confirmed by comparison of their gas chromatographic… (More)

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