metabolite

noun

1. Any substance produced by, or taking part in, a metabolic reaction.

   “Cannabis and some of its metabolites, for example, persist in the fat stores of the body for several weeks after a single dose.”

   “In addition to looking at gene expression, Bozek and her colleagues analyzed levels of metabolites, a diverse group of small molecules that includes sugars, nucleic acids and neurotransmitters. Many metabolites are either necessary for metabolism or produced by it.”