Aminomalonic acid (Ama) was first detected in alkaline hydrolysates of proteins in 1984. Ama has been isolated from proteins of Escherichia coli and human atherosclerotic plaque. The presence of Ama has important biological implications because the malonic acid moiety potentially imparts calcium binding properties to protein.

N-decanoyl-L-Homoserine lactone (C10-HSL) is an N-acyl-homoserine lactone (AHL) produced by Pseudomonas cremoris strain ND07.N-decanoyl-L-homoserine lactone inhibits the growth of primary roots of Arabidopsis thaliana.

Anigorufone (2-hydroxy-9-phenyl-1H-phenalen-1-one) is a phenylphenylcinnamone compound isolated from the seeds of Ensete superbum (Roxb.) Cheesman. and Schiekia timida.