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Not to be confused with
EDMA .
Pharmaceutical compound
EMDA-2 , also known as 2-ethoxy-4,5-methylenedioxyamphetamine , is a psychedelic drug of the phenethylamine and methylenedioxyamphetamine families.[ 1] [ 2] [ 3] It is the analogue of MMDA-2 in which the 2-methoxy group has been replaced with a 2-ethoxy group .[ 1] [ 2] This has resulted in EMDA-2 being described as the "TWEETIO " analogue of MMDA-2.[ 1]
EMDA-2's dose is approximately 135 to 185 mg and its duration is about 10 to 12 hours.[ 1] [ 2] At 135 mg, it produced closed eye visuals , including intense colors, with sleep disturbances and a duration of some 10 hours.[ 1] At 185 mg, its effects were stronger, including "marvelous" closed-eye visuals with "incredible" colors, good concentration , and distinct body tingles and rushes , with insomnia and a duration of about 12 hours.[ 1] The potency of EMDA-2 is about one-third that of MMDA-2.[ 1]
EMDA-2 appears to have first been described in the scientific literature by at least 1975.[ 3] Its effects in humans were described by Alexander Shulgin in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved ).[ 1] [ 2]
^ a b c d e f g h i Shulgin A , Shulgin A (September 1991). PiHKAL: A Chemical Love Story . Berkeley, California : Transform Press . ISBN 0-9630096-0-5 . OCLC 25627628 . "The Tweetio homologue of MMDA-2 has been tasted, however. This is 2-ethoxy-4,5-methylenedioxyamphetamine, or EMDA-2. [...] At 135 milligrams, there have been reported eyes-closed visual phenomena, with intense colors. The overall duration is similar to MMDA-2 (some 10 hours) and there are reported sleep disturbances. At 185 milligrams, the feelings were intensified, there were “marvelous eyes-closed visuals (the colors were incredible), good concentration, but distinct body-tingles and rushes.” The time span was about 12 hours from start to finish, but it proved to be impossible to sleep afterwards. This homologue is thus about a third the potency of MMDA-2."
^ a b c d e Trachsel D, Lehmann D, Enzensperger C (2013). Phenethylamine: von der Struktur zur Funktion [Phenethylamines: From Structure to Function ]. Nachtschatten-Science (in German) (1 ed.). Solothurn: Nachtschatten-Verlag. pp. 828– 829. ISBN 978-3-03788-700-4 . OCLC 858805226 . Retrieved 31 January 2025 .
^ a b Brimblecombe RW, Pinder RM (1975). "Phenylalkylamines and Their Derivatives". Hallucinogenic Agents . Bristol: Wright-Scientechnica. pp. 55– 97.
No ring subs. 4-Hydroxytryptamines 5-Hydroxytryptamines 5-Methoxytryptamines Other ring subs.
2,N ,N -TMT
4,N ,N -TMT
5-Bromo-DMT
5-Chloro-DMT
5-Fluoro-DMT
5-N ,N -TMT
7,N ,N -TMT
5-MeO-2,N ,N -TMT
5-MeO-4,N ,N -TMT
6-Fluoro-DMT
Bretisilocin (GM-2505; 5-fluoro-MET)
α-Alkyltryptamines
5-Methoxy-α-alkyltryptamines: 5-MeO-AET
α,N ,N -TMT (α-Me-DMT; Alpha-N)
5-MeO-AMT (α,O -DMS; Alpha-O)
α,N ,O -TMS (5-MeO-α,N -DMT)
α,N ,N ,O -TeMS (5-MeO-α,N ,N -TMT)
Others
Ergolines /lysergamides (e.g., LSD )
β-Carbolines and Harmala alkaloids (e.g., harmine , harmaline , 6-methoxyharmalan )
Iboga alkaloids (e.g., 18-MAC , 18-MC , coronaridine , ibogaine , ibogamine , ME-18-MC , noribogaine , tabernanthine , voacangine )
Ibogalogs (e.g., ibogainalog )
O -Methylnordehydrobufotenine
Partial ergolines (e.g., NDTDI , RU-28306 , CT-5252 )
Piperidinylethylindoles (e.g., Pip-T )
Pyrrolidinylethylindoles (e.g., Pyr-T , 5-MeO-pyr-T )
Pyrrolidinylmethylindoles (e.g., MPMI , 4-HO-MPMI (lucigenol) , 5-MeO-MPMI )
Benzofurans (e.g., 5-MeO-DiBF , dimemebfe (5-MeO-BFE) , mebfap )
Benzothiophenes (e.g., 3-APBT )
Indazoles (e.g., AL-38022A , O -methyl-AL-34662 )
Indenes (e.g., C-DMT )
Isotryptamines (e.g., 6-MeO-isoDMT , Ro60-0175 )
MYCO-005
Quinolinylethylamines (e.g., mefloquine )
Others: 2C-G-x (e.g., 2C-G-3 , 2C-G-5 )
β-Keto-2C-B (βk-2C-B)
β-Keto-2C-I (βk-2C-I)
β-Methyl-2C-B (BMB)
(e.g., BOB , BOD , BOH-2C-B )
(e.g., HOT-2 , HOT-7 , HOT-17 )
N -Ethyl-2C-B
(e.g., 2CD-2-ETO , 2CD-5-ETO , 2CE-5-ETO , 2CE-5iPrO , 2CT2-5-ETO , ASR-2001 (2CB-5PrO) )
Others
2-TOET
2-TOM
25B-NAcPip
4-HA
5-TOET
5-TOM
Benzofurans (e.g., 5-APB , 5-APDB , 6-APB , 6-APDB , F-2 , F-22 )
Benzothiophenes (e.g., 5-APBT , 6-APBT )
CT-5172
DMAs (e.g., 2,4-DMA , 3,4-DMA )
Fenfluramine
MMA (3-MeO-4-MA)
Norfenfluramine
(e.g., 25D-NM-NDEAOP , DOB-NDEPA , DOI-NDEPA , DOM-NDEPA , DOTFM-NDEPA , M-NDEPA , TMA-2-NDEPA )
PMA (4-MA)
(e.g., TMA-3 , TMA-4 , TMA-5 , TMA-6 )
TOMSO
ZDCM-04
1-Aminomethylindanes (e.g., 2CB-Ind , jimscaline )
2-Aminoindanes (e.g., DOM-AI )
3-Phenylpiperidines (e.g., LPH-5 , LPH-48 )
Benzazepines (e.g., lorcaserin )
Benzocyclobutenes (e.g., 2CBCB-NBOMe , TCB-2 , tomscaline )
Benzoxepins (e.g., BBOX , IBOX , TFMBOX )
DMBMPP (juncosamine)
Ergolines /lysergamides (e.g., LSD )
Glaucine
IHCH-7113
Partial ergolines (e.g., NDTDI , DEIMDHPCA , DEMPDHPCA , DEMTMPDHPCA , DEMNDHPCA )
Phenylcyclopropylamines (e.g., DMCPA , TMT )
Phenyloxazolamines (aminorexes ) (e.g., 2C-B-aminorex )
Z3517967757
ZC-B
Others
Arylpiperazines (e.g., 2C-B-PP , 2-NP , mCPP , MK-212 , ORG-12962 , pCPP , pFPP , quipazine , TFMPP )
Dihydrobenzoxazines (e.g., efavirenz )
Phenoxyethylamines (e.g., CT-4719 , ORG-37684 )
Quinazolinylethylamines (e.g., RH-34 )
Natural sources
Tryptamines: Acacia spp. (e.g., Acacia acuminata , Acacia confusa )
Ayahuasca and vinho de Jurema (e.g., Psychotria viridis (chacruna) , Dipolopterys cabrerana (chaliponga, chacruna) , Mimosa tenuiflora (Mimosa hostilis ; jurema) )
Brosimum (e.g., Brosimum acutifolium (takini) )
Hallucinogenic snuffs (e.g., Anadenanthera peregrina (yopo, jopo, cohoba, parica, ebene) , Anadenanthera colubrina (vilca, cebil) )
Incilius alvarius (Bufo alvarius ; Colorado River toad, Sonoran Desert toad; bufo)
Psilocybin-containing mushrooms (magic mushrooms, shrooms) (e.g., Psilocybe cubensis , Psilocybe mexicana (teonanacatl) )
Lysergamides: Achnatherum robustum (sleepy grass)
Epichloë spp.
Ergot (Claviceps ) (e.g., Claviceps purpurea , Claviceps paspali )
Morning glory (Convolvulaceae) seeds (e.g., Ipomoea tricolor (tlitliltzin, badoh negro; Ipomoea violacea ) , Ipomoea corymbosa (coaxihuitl, ololiúqui; Rivea Corymbosa , Turbina Corymbosa ) , Argyreia nervosa (Hawaiian baby woodrose; HBWR) )
Periglandula spp. (e.g., Periglandula ipomoeae , Periglandula clandestina )
Phenethylamines Amphetamines Phentermines Cathinones Phenylisobutylamines (and further-extended) Catecholamines (and close relatives) Cyclized phenethylamines
Phenylalkylpyrrolidines 2-Benzylpiperidines (phenidates ) Phenylmorpholines (phenmetrazines) Phenyloxazolamines (aminorexes) Isoquinolines andtetrahydroisoquinolines 2-Aminoindanes 2-Aminotetralins Others / unsorted
1-Aminomethylindanes (e.g., 2CB-Ind , AMMI , bromojimscaline , jimscaline )
2-ADN
2-Benzhydrylpyrrolidine
3-Benzhydrylmorpholine
3-Phenylpiperidines (e.g., 3-phenylpiperidine , OSU-6162 (PNU-96391) , LPH-5 , LPH-48 )
6-AB
AL-1095
Aminochromes (e.g., adrenochrome , adrenolutin )
Benzazepines (e.g., fenoldopam , lorcaserin , SCHEMBL5334361 )
Benzocyclobutenes (e.g., 2CBCB-NBOMe , bromotomscaline , S33005 , TCB-2 , tomscaline )
Benzoxepins (e.g., BBOX , IBOX , TFMBOX )
Butyltolylquinuclidine
Cypenamine (trans -2-phenylcyclopentylamine)
Diphenidine
Diphenylprolinol
DMBMPP
Ergolines (e.g., LSD )
GYKI-52895
HDMP-29
Ivabradine
Lumateperone and analogues (e.g., IHCH-7079 , IHCH-7086 , IHCH-7113 , ITI-1549 )
Methoxphenidine
Methylmorphenate
Milnacipran
MT-45
2-Naphthylamine
Org 6582
Partial ergolines (e.g., NDTDI , RU-27849 , DEIMDHPCA , DEMPDHPCA , DEMPDHPCA-2C-D , RU-27251 )
PF-592,379
Phenylcyclopropylamines (e.g., DMCPA , TMT , tranylcypromine )
Tetrahydrobenzopyranylamines (e.g., CT-5126 )
Tricyclics (e.g., benzoctamine , dizocilpine )
Z3517967757
ZC-B
Related compounds
2-Furylethylamine
2-Pyrrolylethylamine
3-Pyrrolylethylamine
3-Pyrrolylpropylamine
2-Tetrahydrofurylethylamine
4-Benzylpiperidine
7-AB
Alkylamines (e.g., 1,3-DMBA Tooltip 1,3-dimethylbutylamine , 1,4-DMAA Tooltip 1,4-dimethylamylamine , heptaminol , iproheptine , isometheptene , methylhexanamine/1,3-DMAA , octodrine , oenethyl , tuaminoheptane )
Benzylamines (e.g., benzylamine , α-methylbenzylamine , MDM1EA , ALPHA , M-ALPHA , pargyline )
Benzylpiperazines (e.g., benzylpiperazine , MDBZP , fipexide )
Cyclohexylaminopropanes (e.g., propylhexedrine , norpropylhexedrine )
Cyclopentylaminopropanes (e.g., isocyclamine , cyclopentamine )
Phenoxyethylamines (e.g., 3,4,5-trimethoxyphenoxyethylamine , CT-4719 , ORG-37684 )
Phenylalkenylamines (e.g., phenylbutenamine )
Phenylalkynylamines (e.g., phenylbutynamine )
Phenylpiperazines (e.g., 1-phenylpiperazine , mCPP Tooltip meta-chlorophenylpiperazine , TFMPP Tooltip trifluoromethylphenylpiperazine , oMPP Tooltip ortho-methylphenylpiperazine , pFPP Tooltip para-fluorophenylpiperazine , pMeOPP Tooltip para-methoxyphenylpiperazine )
Phenylpropylamines (e.g., phenylpropylamine , homo-MDA , homo-MDMA )
Thienylaminopropanes (thiopropamines) (e.g., thiopropamine , methiopropamine , thiothinone )