Mesoxalic acid is primarily located in the cytoplasm within the cell. Mesoxalic acid can be biosynthesized from malonic acid. Outside of the human body mesoxalic acid can be found in cereals and cereal products common pea and herbs and spices.

Tiliquinol (NSC-130828) (NSC-130828) is a non-absorbed luminal agent with anti-amoebic properties that is often used in conjunction with tibroquinol. It is commonly employed in the study and investigation of amebic liver abscesses.

L-Homocysteine thiolactone hydrochloride is neurotoxic and can induce epilepsy and Alzheimer's disease.