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.

Margaritene is a natural product for research related to life sciences.

Prototypical δ-opioid receptor agonist that also displays activity at the μ-opioid receptor. Displays antinociceptive activity in vivo.