2C-Se

{{chembox

| ImageFile = 2C-SE-Chemdraw.png

| PIN = 2-[2,5-Dimethoxy-4-(methylselanyl)phenyl]ethan-1-amine

|Section1={{Chembox Identifiers

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| InChI = 1S/C11H17NO2Se/c1-13-9-7-11(15-3)10(14-2)6-8(9)4-5-12/h6-7H,4-5,12H2,1-3H3

| InChIKey = CXQUHXATPUFGMC-UHFFFAOYSA-N

| CASNo_Ref = {{cascite|correct|??}}

| CASNo = 1189246-68-1

| PubChem = 44719515

| ChemSpiderID = 21106227

| UNII = 0KHR4CW43B

| SMILES = NCCc1cc(OC)c(cc1OC)[Se]C

}}

|Section2={{Chembox Properties

| Formula =

| C=11 | H=17 | N=1 | O=2 | Se=1

| MolarMass = 274.218 g/mol

| Appearance =

| Density =

| MeltingPtC = 240-241

| BoilingPt =

| Solubility = }}

|Section3={{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt = }}

}}

2C-Se is a lesser-known psychedelic drug. It was originally named by Alexander Shulgin as described in his book PiHKAL (Phenethylamines i Have Known And Loved). Shulgin considered 2C-Se to be around three times the potency of mescaline,{{cite book |author1=Alexander Shulgin |author2=Tania Manning |author3=Paul F Daley | title = The Shulgin Index. Volume 1. Psychedelic Phenethylamines and Related Compounds | page = 346 | publisher = Transform Press | date = 2011 | isbn = 978-0-9630096-3-0}}{{cite book | last=Shulgin | first=Alexander T. | chapter=Basic Pharmacology and Effects | pages=67–137 | editor-last=Laing | editor-first=Richard R. | title=Hallucinogens: A Forensic Drug Handbook | publisher=Elsevier Science | series=Forensic Drug Handbook Series | year=2003 | isbn=978-0-12-433951-4 | url=https://books.google.com/books?id=l1DrqgobbcwC | chapter-url=https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=6bb3a7499da8e9852b39cd4db16891147c83f5c6 | access-date=1 February 2025}}{{cite book |author=Daniel Trachsel |author2=David Lehmann |author3=Christoph Enzensperger |name-list-style=amp |year=2013 |title=Phenethylamine: Von der Struktur zur Funktion | pages = 801–802 | publisher=Nachtschatten Verlag AG |isbn=978-3-03788-700-4}}Jacob P, Shulgin AT. Structure-activity relationships of the classic hallucinogens and their analogs. In Hallucinogens: An update. pp 74–91. NIDA Research Monograph 146. NIH Publication 94-3872, 1994. but was too concerned about toxicity to test it extensively, though he considered it noteworthy as the only psychedelic drug to contain a selenium atom.{{CitePiHKAL}}