2C-T-21

2C-T-21
Clinical data
Other names	4-(2-Fluoroethylthio)-2,5-dimethoxyphenethylamine; 2,5-Dimethoxy-4-(2-fluoroethylthio)phenethylamine; 2C-T-FE
Routes of; administration	Oral
Drug class	Serotonin receptor modulator; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
ATC code	None;
Legal status
Legal status	In general unscheduled;
Pharmacokinetic data
Onset of action	15 min–1 hour
Duration of action	7–10 hours
Identifiers
	IUPAC name 2-{4-[(2-fluoroethyl)sulfanyl]-2,5-dimethoxyphenyl}ethan-1-amine;
CAS Number	207740-33-8 [chemspider];
PubChem CID	44349972;
ChemSpider	21106231 ;
UNII	720O3Q04GA;
ChEMBL	ChEMBL126582 ;
CompTox Dashboard (EPA)	DTXSID00174851 ;
Chemical and physical data
Formula	C12H18FNO2S
Molar mass	259.34 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES COc1cc(SCCF)c(cc1CCN)OC;
	InChI InChI=1S/C12H18FNO2S/c1-15-10-8-12(17-6-4-13)11(16-2)7-9(10)3-5-14/h7-8H,3-6,14H2,1-2H3 ; Key:ZBUUUKBTOCTOPW-UHFFFAOYSA-N ;
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2C-T-21, also known as 4-(2-fluoroethylthio)-2,5-dimethoxyphenethylamine, is a psychedelic phenethylamine of the 2C family. It is taken orally.

2C-T-21 was first described in the scientific literature by Alexander Shulgin and colleagues in 1991. Shortly after this, Shulgin described 2C-T-21 in greater detail in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved). The drug has been encountered as a novel designer drug.