Tropine is a derivative of tropane containing a hydroxyl group at the third carbon.

[3] Tropine is a central building block of many chemicals active in the nervous system, including tropane alkaloids.

Some of these compounds, such as long-acting muscarinic antagonists are used as medicines because of these effects.

[5] Tropine is a natural product found in the plants of deadly nightshade (Atropa belladonna) and devil's trumpet (Datura stramonium).

[1] It can be prepared by hydrolysis of atropine[6] or other solanaceous alkaloids.