[Des-Tyr1]-gamma-Endorphin is a neuropeptide, which can be found in human cerebrospinal fluid. [Des-Tyr1]-gamma-Endorphin exhibits antidepressant efficacy, facilitates the extinction of active avoidance and attenuates the passive avoidance behavior in rats.

Glycolithocholic acid is a glycine conjugate of lithocholic acid, a bile acid. It is increased in livers of mice that are fed diets supplemented with ursadeoxycholic acid.

Copper probe CF4 (Copper fluor CF4) is a fluorescent copper probe that can be used to study colon cancer.