The molecule is an organic cation obtained by deprotonation of the tertiary amino group of festuclavine; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a festuclavine.
(6aR,9R,10aR)-7,9-dimethyl-4,6,6a,7,8,9,10,10a-octahydroindolo[4,3-fg]quinolin-7-ium