There exists also an N1—H1⋯O4 hydrogen bond among the indole nitro­gen and the other oxygen with the carboxyl­ate group over a symmetry-created fumarate dianion (Desk 2 ) are shown as dashed lines. Displacement ellipsoids are drawn on the 50% chance amount. Hydrogen atoms not linked to hydrogen bonding are omitted https://5-meo-daltfreebase70257.wikicorrespondent.com/5458283/indicators_on_5_meo_dalt_freebase_you_should_know