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Systematic (IUPAC) name
Clinical data
Routes of
Legal status
Legal status
CAS Number 3569-29-7
ATC code none
PubChem CID 28806639
Chemical data
Formula C12H16N2
Molar mass 188.26 g/mol[[Script error: No such module "String".]]
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4-Methyl-αMT (MP-809), also known as 4,α-dimethyltryptamine (4,α-DMT), is a drug belonging to the tryptamine class that was investigated as an antidepressant in the early 1960s but was never marketed.[1][2] It was briefly mentioned in TiHKAL by Alexander Shulgin as a psychedelic, with oral doses of 20 mg producing "feelings of unreality" in human subjects, as well as peripheral side effects such as flushing, muscle tightness, and mydriasis.[3]

See also


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  1. "THE EFFECT OF MP-809 IN DEPRESSIVE STATES: A MULTI-BLIND STUDY -- AZIMA et al. 119 (6): 573 -- Am J Psychiatry". 
  2. Brodey, James F.; Steiner, Wm. G.; Himwich, Harold E. (1963). "An electrographic study of psilocin and 4-methyl-α'-methyl-tryptamine (MP-809 Sandoz)". Journal of Pharmacology and Experimental Therapeutics. 140: 8–18. 
  3. "Erowid Online Books : "TIHKAL" - #48 a-MT".