There may be also an N1—H1⋯O4 hydrogen bond involving the indole nitro­gen and another oxygen of your carboxyl­ate team on the symmetry-generated fumarate dianion (Table two The synthesis and strong-point out construction of the fumarate salt on the synthetic psychedelic 5-meth­oxy- Anyway I suppose I am just throwing this out https://johnathanjhdxs.wikikali.com/556833/5_meo_dalt_freebase_fundamentals_explained