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.

PEP-1 peptide, which has 21 amino acid residues, is a known carrier peptide that delivers full-length native proteins in vitro and in vivo.

(1R,2R)-(-)-1,2-Diaminocyclohexane ((1R,2R)-Cyclohexane-1,2-diamin) has anticancer and antitumor activity and can be used to study malignant tumors.