4-HO-DPT
4-HO-DPT It is the 4-hydroxyl analog of dipropyltryptamine.
In 2019, Chadeayne et al. solved the crystal structure of the fumarate salt of 4-HO-DPT. The authors describe the structure as follows: "The asymmetric unit contains one 4-HO-DPT cation, protonated at the dipropylamine N atom. There are also two independent water molecules, and half of a fumarate ion present."