Lumichrome is a natural metabolite of riboflavin. Lumichrome produced by Rhizobium and other bacterial species induces major developmental changes in plants at nanomolar concentrations. Lumichrome can stimulate larval metamorphosis in ascidians and activate the LasR quorum sensing receptor of bacteria.

Qingyangshengenin is a steroid used in the preparation of antiepileptic agents.

Propanidid (Sombrevin) is a gamma-aminobutyric acid type A receptor (GABAA) agonist and a fast-acting intravenous anesthetic that lowers arterial blood pressure.