<unk>  <unk>  is a chemical intermediate in the synthesis of artificial vanilla flavorings and is an end-stage metabolite of the catecholamines (dopamine, epinephrine, and norepinephrine). It is produced via intermediary metabolites.
Vanillylmandelic acid
Choline
3-Indolepropionic acid
3-Chloropropanoic acid
Phenylacetic acid
Arachidonic acid
Palate
Deoxypyridinoline