four-HO-MET is substituted at R4 of its indole heterocycle with a hydroxyl useful team OH−. Furthermore, it consists of a methyl group and an ethyl chain sure to the terminal amine RN of its tryptamine spine (MET). This compound is definitely an ”historical” one! 4-HO-MET has become documented Considering https://chinachemsupplies.com/4-ho-met/