thioproscaline thioproscaline thioproscaline, or 3,5-dimethoxy-4-propylthiophenethylamine, is a lesser-known psychedelic drug. it is the 4-propylthio analog of mescaline. thioproscaline was first synthesized by alexander shulgin. in his book pihkal (phenethylamines i have known and loved), the dosage range is listed as 20–25 mg, and the duration listed as 10–15 hours. thioproscaline causes closed-eye visuals, slight open-eye visuals, and a body load. very little data exists about the pharmacological properties, metabolism, and toxicity of thioproscaline. thioproscaline names preferred iupac name 2-ethan-1-amine identifiers cas number 90109-55-0 n 3d model (jsmol) interactive image chembl chembl127855 y chemspider 21106393 y pubchem cid 44349931 unii bt7m7f9c8c y comptox dashboard (epa) dtxsid00658368 inchi inchi=1s/c13h21no2s/c1-4-7-17-13-11(15-2)8-10(5-6-14)9-12(13)16-3/h8-9h,4-7,14h2,1-3h3 ykey: bqfdsmxqcjfkch-uhfffaoysa-n yinchi=1/c13h21no2s/c1-4-7-17-13-11(15-2)8-10(5-6-14)9-12(13)16-3/h8-9h,4-7,14h2,1-3h3key: bqfdsmxqcjfkch-uhfffaoyay smiles coc1cc(cc(oc)c1sccc)ccn properties chemical formula c13h21no2s molar mass 255.376 g/mol except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references