4-HO-Fulfilled is substituted at R4 of its indole heterocycle by using a hydroxyl functional group OH−. Additionally, it has a methyl group and an ethyl chain bound to the terminal amine RN of its tryptamine backbone (Fulfilled). Psychopharmacology: Analyzing the psychoactive consequences to be aware of the mechanisms underlying https://chinachemsupplies.com/4-ho-met/