RT Journal Article SR Electronic T1 3,4,5-Trimethoxybenzoic acid, a new mescaline metabolite in humans. JF Drug Metabolism and Disposition JO Drug Metab Dispos FD American Society for Pharmacology and Experimental Therapeutics SP 507 OP 509 VO 6 IS 5 A1 L Demisch A1 P Kaczmarczyk A1 N Seiler YR 1978 UL http://dmd.aspetjournals.org/content/6/5/507.abstract AB After ingestion of 400 mg of mescaline sulfate by human volunteers, 3,4,5-trimethoxybenzoic acid was isolated from urine and identified by gas chromatography-mass spectrometry. The amount of this anionic mescaline metabolite was found to be very low as compared with that of the well-konwn 3,4,5-trimethoxyphenylacetic acid. The significance of this finding is discussed.