methyl-dob methyl-dob methyl-dob, or 4-bromo-2,5-dimethoxy-n-methylamphetamine, is a lesser-known psychedelic drug. it is similar in structure to dob. methyl-dob was first synthesized by alexander shulgin. in his book pihkal (phenethylamines i have known and loved), the minimum dosage is listed as 8 mg, and the effects onset begin after 3 hours and last up to 36 hours. methyl-dob produces many physical effects, such as mydriasis and muscle tenseness, but few psychoactive effects. very little data exists about the pharmacological properties, metabolism, and toxicity of methyl-dob. methyl-dob names preferred iupac name 1-(4-bromo-2,5-dimethoxyphenyl)-n-methylpropan-2-amine identifiers cas number 155638-80-5 y 3d model (jsmol) interactive image chembl chembl351858 y chemspider 8261023 y pubchem cid 10085486 unii ww3lf52s82 y comptox dashboard (epa) dtxsid60435435 inchi inchi=1s/c12h18brno2/c1-8(14-2)5-9-6-12(16-4)10(13)7-11(9)15-3/h6-8,14h,5h2,1-4h3 ykey: gurvsgccxmifmq-uhfffaoysa-n yinchi=1/c12h18brno2/c1-8(14-2)5-9-6-12(16-4)10(13)7-11(9)15-3/h6-8,14h,5h2,1-4h3key: gurvsgccxmifmq-uhfffaoyaz smiles brc1cc(oc)c(cc1oc)cc(nc)c properties chemical formula c12h18brno2 molar mass 288.181 g/mol except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). y verify (what is yn ?) infobox references