5,6-mdo-dmt 5,6-mdo-dmt 5,6-mdo-dmt, or 5,6-methylenedioxy-n,n-dimethyltryptamine, is a lesser-known psychedelic drug. it is the 5,6-methylenedioxy analog of dmt. 5,6-mdo-dmt was first synthesized by alexander shulgin. in his book tihkal (tryptamines i have known and loved), 5,6-mdo-dmt produces no noticeable psychoactive effects, although it was only tested up to a dose of 5 mg. very little data exists about the pharmacological properties, metabolism, and toxicity of 5,6-mdo-dmt. 5,6-mdo-dmtidentifiers iupac name 2-(5h-dioxoloindol-7-yl)-n,n-dimethylethanamine cas number82173-81-7 ypubchem cid13140993chemspider10524352uniiqpj5n6rf24chemblchembl283686chemical and physical dataformulac13h16n2o2molar mass232.283 g·mol−13d model (jsmol)interactive image smiles cn(c)ccc1=cnc2=cc3=c(c=c21)oco3 inchi inchi=1s/c13h16n2o2/c1-15(2)4-3-9-7-14-11-6-13-12(5-10(9)11)16-8-17-13/h5-7,14h,3-4,8h2,1-2h3key:qheighvzmwjqhb-uhfffaoysa-n