Colocynthin is a cucurbitane triterpenoid glycoside that can be isolated from the bitter apple (Citrullus colocynthis).

Quercetin 3-O-sophoroside-7-O-rhamnoside is a natural product of Viola, Violaceae. Quercetin 3-O-sophoroside-7-O-rhamnoside can be used as a reference standard.

β-Eudesmol is a noncompetitive antagonist of nicotinic acetylcholine receptors (nAChRs). It is a sesquiterpene that has been found in a variety of plants, including Cannabis, and has diverse biological activities.