Scammonin (also known as jalapin or scammonium) is a

glycoside In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycoside ...

that has been isolated from the stems of ''

Ipomoea purga ''Ipomoea purga'' is a species of flowering plant in the genus ''Ipomoea''. It is commonly referred to as jalap and is probably also the source of the John the Conqueror root. Description ''Ipomoea purga'' is described as a vine that can reach ...

'' (jalap plant) and from '' Convolvulus scammonia'' (scammony).

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Glycosides Glycolipids {{organic-compound-stub de:Skammonium