Ouabain

**Definition:** A cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae; used like DIGITALIS. It is commonly used in cell biological studies as an inhibitor of the NA(+)-K(+)-EXCHANGING ATPASE.

**Tree numbers:** - D04.210.500.155.580.130.750.600 - D09.408.180.810.600

**Synonyms:** - Acocantherin - Acolongifloroside K - G-Strophanthin