L-alloisoleucine is a branched chain amino acid and is a stereoisomer of L-isoleucine. It is a common constituent of human plasma (albeit at low levels). L-alloisoleucine is produced as a byproduct of isoleucine transamination. Plasma L-alloisoleucine which is derived from L-isoleucine in vivo can be used for the diagnosis of maple syrup urine disease (MSUD) a genetic disorder.

Motilin, human, porcine is a gastrointestinal hormone, which is released during fasting and after eating, or by drinking water. Motilin, human, porcine promotes enteric cholinergic activity in human stomach with an EC50 of 33 nM, and thus modulates gastrointestinal motility function.

(rel)-Myrislignan is a relative configuration of Myrislignan. Myrislignan is a lignan isolated from Myristica fragrans Houtt.