3,4-Dihydroxymandelic acid is a metabolite of norepinephrine.
[1]. Sule N, et al. The Norepinephrine Metabolite 3,4-Dihydroxymandelic Acid Is Produced by the Commensal Microbiota and Promotes Chemotaxis and Virulence Gene Expression in Enterohemorrhagic Escherichia coli. Infect Immun. 2017 Sep 20;85(10).
















