2C-T-29

2C-T-29 (2C-T-PROPARGYL) is a designer drug from the substituted phenethylamine family, which was first synthesised by Josh Hartsel and colleagues in 2024. It is a potent agonist at the serotonin receptor 5-HT_2A in vitro, with a binding affinity (K_i) of 1.3 nM and an EC₅₀ of 0.67 nM, acting as a full agonist.^[1] While the closely related propylthio compound 2C-T-7 and the allylthio derivative 2C-T-16 are both known to be potent psychedelic drugs in humans, the propargylthio analogue 2C-T-29 is not known to have been tested in humans or other animals.^[2]

2C-T-29

Identifiers
IUPAC name 2-(2,5-dimethoxy-4-prop-2-ynylsulfanylphenyl)ethanamine
PubChem CID	169149320
Chemical and physical data
Formula	C13H17NO2S
Molar mass	251.34 g·mol−1
3D model (JSmol)	Interactive image
SMILES COC1=CC(=C(C=C1CCN)OC)SCC#C
InChI InChI=1S/C13H17NO2S/c1-4-7-17-13-9-11(15-2)10(5-6-14)8-12(13)16-3/h1,8-9H,5-7,14H2,2-3H3 Key:BWTBPZDUQOTNBE-UHFFFAOYSA-N

See also

• 2C-T-35
• 2C-T-TFM
• 2C-YN