ChEBI

A molecular entity capable of accepting a hydron from a donor (Bronsted acid).

A molecular entity capable of donating a hydron to an acceptor (Bronsted base).

Any bacterial metabolite produced during a metabolic reaction in Escherichia coli.

Any fungal metabolite produced during a metabolic reaction in Baker's yeast (Saccharomyces cerevisiae ).

Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).

Any eukaryotic metabolite produced during a metabolic reaction in algae including unicellular organisms like chlorella and diatoms to multicellular organisms like giant kelps and brown algae.

Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites.