2C-Se

2C-Se, also known as 4-methylseleno-2,5-dimethoxyphenethylamine, is a psychedelic drug of the phenethylamine and 2C families.^[1] It was originally named by Alexander Shulgin as described in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved).^[1] Shulgin listed its dose as perhaps 100 mg orally and its duration as 6 to 8 hours.^[1] Its onset was 45 minutes, peak effects occurred after 1.5 hours, and doses of 50 to 70 mg orally produced threshold effects.^[1] Shulgin considered 2C-Se to be around three times the potency of mescaline, 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.^{[1][2][3][4][5]} 2C-Se was first described in the literature by Shulgin in PiHKAL in 1991.^[1]

2C-Se

Clinical data
Other names	4-Methylseleno-2,5-dimethoxyphenethylamine;
Routes of administration	Oral[1]
Drug class	Serotonergic psychedelic; Hallucinogen[1]
ATC code	None
Pharmacokinetic data
Onset of action	45 minutes[1]
Duration of action	6–8 hours[1]
Identifiers
IUPAC name 2-[2,5-dimethoxy-4-(methylselanyl)phenyl]ethan-1-amine
CAS Number	1189246-68-1 Y
PubChem CID	44719515
ChemSpider	21106227 Y
UNII	0KHR4CW43B
CompTox Dashboard (EPA)	DTXSID401242021
Chemical and physical data
Formula	C11H17NO2Se
Molar mass	274.233 g·mol−1
3D model (JSmol)	Interactive image
Melting point	240 to 241 °C (464 to 466 °F)
SMILES NCCc1cc(OC)c(cc1OC)[Se]C

See also

• 2C (psychedelics)
• 2C-Se-TFM
• 2C-Te