Methylglutaric acid is a leucine metabolite. A large amount of methylglutaric acid is identified in urine of patients with deficiency of 3-methylglutaconyl coenzyme A hydratase. Methylglutaric acid is also found to be associated with 3-hydroxy-3-methylglutaryl-CoA lyase deficiency another inborn error of metabolism.

(-)-Carveol, mixture of isomers is a monocyclic monoterpenic alcohol, present in essential oils of plant species such as Cymbopogon giganteus, Illicium pachyphyllum and in spices such as Carum carvi (cumin).

Succinyl-Coenzyme A sodium salt(Succinyl-CoA sodium salt) participates in the citric acid cycle, where it is converted to succinic acid.Succinyl-Coenzyme A (sodium salt) is involved in a variety of metabolic reactions in living organisms.