Cuscohygrine
Cuscohygrine is a pyrrolidine alkaloid found in coca. It can also be extracted from plants of the family Solanaceae, including Atropa belladonna, Datura innoxia and Datura stramonium. Cuscohygrine usually occurs along with other, more potent alkaloids such as atropine or cocaine.
Cuscohygrine, along with the related metabolite hygrine, was first isolated by Carl Liebermann in 1889 as an alkaloid accompanying cocaine in coca leaves.
Cuscohygrine is an oil that can be distilled without decomposition only in vacuum. It is soluble in water. It also forms a crystalline trihydrate which melts at 40–41 °C.