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Title: 2CD-5EtO  
Author: World Heritage Encyclopedia
Language: English
Subject: 5,N-Dimethyl-N-isopropyltryptamine, LPD-824, LSM-775, 25E-NBOMe, Alpha-N,N-Trimethyltryptamine
Publisher: World Heritage Encyclopedia


Systematic (IUPAC) name
Clinical data
Legal status
ATC code ?
ChemSpider  YesY
Chemical data
Formula C12H19NO2 
Mol. mass 209.284 g/mol

2CD-5EtO is a homologue of the psychedelic phenethylamine 2C-D, where the 5-methoxy group of 2C-D has been lengthened to an ethoxy group. 2CD-5EtO is a representative example of the so-called "tweetio" compounds discovered by Alexander Shulgin and briefly mentioned in his book PiHKAL, which are homologues of the 2C family of drugs, where either one or both of the methoxy groups at the 2,5- positions of the aromatic ring have been replaced by ethoxy. The term tweetio was derived phonetically from the sound of the "2-ETO" derivatives.

A large number of tweetio derivatives of various 2C drugs have been synthesised and tested, including the 2-ethoxy homologues 2CD-2EtO, 2CB-2EtO, 2CI-2EtO, 2CT-2EtO, 2CT2-2EtO, 2CT4-2EtO and 2CT7-2EtO, the 5-ethoxy homologues 2CD-5EtO, 2CE-5EtO, 2CB-5EtO, 2CT-5EtO and 2CT2-5EtO, and the 2,5-diethoxy homologues 2CD-diEtO, 2CB-diEtO and 2CT2-diEtO.[1] In general the 2-ethoxy homologues were all several times less potent and somewhat shorter acting than the parent compounds, while the 2,5-diethoxy homologues were far less potent and qualitatively milder even at high doses.[2] The 5-ethoxy homologues however were of a similar potency to the parent compounds and much longer lasting, with both 2CE-5EtO and 2CT2-5EtO lasting 24 hours or more. At small doses, the 5-ethoxy homologues are reputed to produce weaker psychedelic effects, but with increased nootropic action, which might potentially make them useful as study aids.[3]

Structures of 2CD-2EtO, 2CE-5EtO and 2CT2-5EtO

See also


  1. ^ Richard R. Laing. Hallucinogens: a forensic drug handbook. pp 85-86. Academic Press, 2003. ISBN 978-0-12-433951-4
  2. ^ 146, 1994; 74-91.NIDA Research MonographP. Jacob III and A.T. Shulgin. Structure-Activity Relationships of the Classic Hallucinogens and Their Analogs.
  3. ^ Hosteen Nez. Certain Exotic Transmitters as SMART PILLS or Compounds that Increase the Capacity for Mental Work in Humans.

External links

  • 2C-D Entry in PiHKAL
  • 2C-E Entry in PiHKAL
  • 2C-T-2 Entry in PiHKAL
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