5-Hydroxymethyl-2-furancarboxylic acid (Sumiki's acid) is a naturally occurring human metabolite. Sumiki's acid was first identified in the urine of a leukemia patient who was excreting an abnormal amount of its glycine derivative. Sumiki's acid has been found to be a byproduct of the fungus Aspergillus and probably other species of fungi and yeast as well.

Fletikumab (NNC0109-0012) is a monoclonal antibody that inhibits IL-20, primarily used in research on rheumatoid arthritis and psoriasis.

(2R)-6-methylhept-5-en-2-ol ((R)-6-Methylhept-5-en-2-ol) is a pheromone component of Cerambycid beetles in the Lamiinae subfamily.