2C-T-7

2,5-Dimethoxy-4-propylthiophenethylamine

Blue Mystic, Beautiful, 7th Heaven, T7

Psychoactive Class

Chemical Class

2C-T-7 is a 2C-x substituted phenethylamine psychedelic with both psychedelic and entactogenic properties. Alexander Shulgin developed it, later included it in PiHKAL, and it appeared in the scientific literature around 1990. He counted it among his "magical half-dozen" - the phenethylamines he regarded as most significant. The compound is especially sensitive to dose, and users often describe prominent visuals alongside a heavy somatic load.

Dosage & Duration

Dosage

Threshold~3 mg

Light3-15 mg

Moderate15-25 mg

Strong25-40 mg

Heavy40+ mg

Duration

Onset60-90 minutes

Come Up10-30 minutes

Peak3-5 hours

Offset1-3 hours

After Effects2-8 hours

Total6-10 hours

Subjective Effects

Effects vary widely by individual, dose, and context.

Physical

Tactile enhancementTemperature regulation loss

Cognitive

The head space of 2C-T-7 is described by many as one which is both insightful and relatively normal in its thought processes even at moderate to high dosages.

Current mind state enhancement Thought acceleration Feelings of fascination, importance and awe Time distortion Introspection Personal bias suppression Conceptual thinking Ego suppression, loss and death Thought loops Feelings of interdependent opposites Delusions Unity and interconnectedness

Visual

Distortions

Tracers After images Texture repetition Colour shifting Scenery slicing

Enhancements

Increased visual acuity Enhancement of colour Enhanced pattern recognition

Geometry

The visual geometry of 2C-T-7 can be described as more similar in appearance to that of 4-AcO-DMT or ayahuasca than that of LSD, 2C-B or 2C-I. They can be comprehensively described as structured in their organization, organic in geometric style, intricate in complexity, large in size, fast and smooth in motion, colourful in scheme, glossy in colour, sharp in their edges and equally rounded and angular in their corners. They give off a contradictory natural and synthetic feel with slightly more mystical and shamanic undertones to them in comparison to other phenethylamines. At higher dosages they are equally likely to result in states of Level 7A visual geometry and Level 7B. The visual geometry is extremely similar to 2C-E and 2C-P and can be described as equal in intensity or complexity.

Hallucinatory States

2C-T-7 produces a full range of high level hallucinatory states in a fashion that is more consistent and reproducible than that of many other commonly used psychedelics, particularly in comparison to other substances within the phenethylamine family.

External hallucinations

Auditory

The auditory effects of 2C-T-7 are more common in their occurrence than many more commonly used psychedelics.

Enhancements Distortions Hallucinations

Forked from Subjective Effect Documentation

by Josie KinsApril 2014.

Reagent Testing

Loading reagent data

Expected colorimetric results are being prepared.

Pharmacology

Pharmacodynamics

2C-T-7 acts as a partial agonist at the serotonin 5-HT2A receptor, which is considered the primary mechanism responsible for its psychedelic effects.¹² The 2,5-desmethoxy derivative of 2C-T-7 has been shown to be a moderate monoamine oxidase A (MAO-A) inhibitor, and 2C-T-7 itself is widely thought to possess some degree of MAO-A inhibitory activity as well, though this has not been directly confirmed for the parent compound.

Pharmacokinetics

2C-T-7 is metabolized by the monoamine oxidase enzymes MAO-A and MAO-B.³

Metabolitesnone documented yet

Interactions

Dangerous

Highest risk

These combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.

AMTLithiumPCP

Unsafe

Avoid

There is considerable risk of physical harm when taking these combinations, they should be avoided where possible.

AmphetaminesCocaineDXMTramadol

Caution

Use caution

These combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Synergistic effects may be unpredictable. Care should be taken when choosing to use this combination.

2C-x compounds5-MeO-xxT tryptaminesCannabisDOx compoundsMAOIsMDMAMescalineMXENBOMe compounds

TripSit

Tolerance

Full Tolerance

2C-T-7 can produce tolerance almost immediately after use. Daily consecutive use substantially reduces effects, and users often need about twice as much on later days for comparable results.

Baseline Reset

5-7 days for most users, though full baseline restoration is typically achieved within 7 days of abstinence.

Half Tolerance

Approximately 3 days

Cross Tolerance

Serotonergic psychedelics

Harm Potential

Addiction & Dependence

Psychological

Extremely Low

2C-T-7 is not habit-forming and is unlikely to cause psychological dependence. The desire to use it often decreases with repeated use, and it is described as self-regulating by most users.

Physical

Extremely Low

2C-T-7 is not physically addicting. Withdrawal effects following discontinuation have not been reported.

Toxicity

Nasal Mucosa

Insufflation of 2C-T-7 causes intense burning pain lasting 5-15 minutes, leaves an unpleasant drip, and can lead to sinus and throat infections with repeated use; oral administration does not carry this risk.

Psychosis Risk

At high doses, 2C-T-7 can produce severe dissociation and delirium⁴ characterized by complete disorientation, memory loss, confusion about having ingested a substance, and in some cases belligerent or violent behavior. These effects are dose-dependent and primarily associated with doses exceeding typical recreational ranges, particularly via insufflation. At typical oral doses, the headspace is described as relatively clear and insightful. Individuals with a family history of schizophrenia or early onset mental illness are advised to exercise extreme caution as psychedelics may trigger latent psychological conditions.

Seizure Risk

Muscle tremors and convulsions are listed among possible negative effects.⁴⁵ Individuals with pre-existing seizure or convulsive disorders are warned they may be at elevated risk when using this substance.

History & Culture

Discovery and Development

2C-T-7 was developed around 1980 by Alexander Shulgin and Peyton Jacob III as part of Shulgin's extensive research program into substituted phenethylamines. The compound was first described in scientific literature by Myron Stolaroff by 1990, with more detailed characterization published by Shulgin…

Trip Reports

Legality

International

2C-T-7 is not listed under the 1961 Single Convention on Narcotic Drugs. It is listed in Schedule II of the 1971 Convention on Psychotropic Substances. It is not listed under the 1988 Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances.

By Country

United StatesIllegalSchedule I

Controlled Substances Act; DEA Final Rule, 69 FR 12794⁴⁴

Classified as Schedule I by emergency DEA ruling on September 20, 2002.⁴⁵ Permanently placed in Schedule I on March 18, 2004 when the DEA published a Final Rule in the Federal Register (69 FR 12794).⁴⁶ Manufacturing, buying, possessing, or distributing without a DEA license is illegal.

By state

Across the 50 states, D.C., and the permanent territories, most jurisdictions treat 2C-T-7 consistently with federal control; listed entries record independently verified differences in state classification or coverage.

Texas

IllegalPenalty Group 2 controlled substance

AustriaIllegalAnhang V

Suchtgiftverordnung⁹

Prohibited under the Suchtmittelgesetz (SMG). Possession, production, and sale are illegal.

BrazilIllegalLista F2

Portaria SVS/MS nº 344/1998, Lista F2¹²

Possession, production, and sale are illegal. Listed on Portaria SVS/MS nº 344 as of February 18, 2014.

ChinaIllegal增补目录

非药用类麻醉药品和精神药品列管办法（公通字〔2015〕27号）¹⁶¹⁷

Controlled substance as of October 2015. Illegal to sell, buy, import, export, and manufacture.

DenmarkIllegalListe B

Bekendtgørelse om euforiserende stoffer²⁰

Added to category B of the controlled substances list on August 23, 2003.

FinlandIllegalLiite

Valtioneuvoston asetus huumausaineina pidettävistä aineista, valmisteista ja kasveista 543/2008²²

Scheduled under the government decree on substances, preparations, and plants considered to be narcotic drugs.

GreeceIllegalΠίνακας Α

Law 3459/2006, Article 1 substance tables, as in force under Law 4139/2013²⁴²⁵

Became a controlled substance on February 18, 2003.

LatviaIllegalI saraksts

Ministru kabineta noteikumi Nr. 847²⁷

Classified as a Schedule I controlled substance. Possession, production, and distribution are prohibited.

NorwayIllegalNarkotikalisten

Forskrift om narkotika (narkotikaforskriften)²⁹³⁰³¹

2C-T-7 is listed in Norway’s Narkotikalisten to the Narkotikaforskriften under its chemical name, 2,5-dimetoksy-4-propyltiofenetylamin. The list marks it as prohibited under section 5 of the regulation. As a listed narcotic, unlawful possession and use are prohibited under the Medicines Act, and narcotic manufacture, import, trade, supply and dispatch are subject to the statutory narcotics controls.

PortugalIllegalTabela II-A

Decreto-Lei n.º 15/93, Tabela II-A³³

Legislation enacted in January 2005 to control 2C-T-7 alongside 2C-I, 2C-T-2, and TMA-2.

SpainIllegalLista I

Orden SCO/2359/2004, de 2 de julio, por la que se incluyen determinadas sustancias en la lista I del anexo I del Real Decreto 2829/1977, de 6 de octubre³⁶³⁷

2C-T-7 (2,5-dimetoxi-4-(n)-propiltiofenetilamina) is included in Lista I of Annex I to Real Decreto 2829/1977 by Orden SCO/2359/2004. Since 17 July 2004, its use, manufacture, importation, exportation, transit, trade, distribution, possession, and inclusion in any preparation are prohibited in Spain. Scientific research requires prior authorization from the Spanish Agency of Medicines and Medical Devices.

SwitzerlandIllegalVerzeichnis d

Verordnung des EDI über die Verzeichnisse der Betäubungsmittel, psychotropen Stoffe, Vorläuferstoffe und Hilfschemikalien (BetmVV-EDI; SR 812.121.11)³⁹⁴⁰

Specifically named as a controlled substance under Verzeichnis D of Swiss narcotics legislation.

United KingdomIllegalClass A

Misuse of Drugs Act 1971⁴³

Controlled as a Class A substance under the Misuse of Drugs Act 1971 through the phenethylamine catch-all clause. In 1999, the Home Office effectively placed PiHKAL-associated compounds into Class A.

AustraliaIllegalSchedule 9

Therapeutic Goods (Poisons Standard—February 2026) Instrument 2026⁸

Covered by analogue drug laws and formally added to Schedule 9 (the most restrictive category) by the National Drugs and Poisons Schedule Committee in 2005.

BelgiumIllegal (analog/blanket ban)Bijlage IVA

Royal Decree of 6 September 2017 regulating narcotic drugs and psychotropic substances¹⁰¹¹

Added to the list of illegal psychotropic substances on November 8, 2004.

CanadaIllegalSchedule III

Controlled Drugs and Substances Act¹³¹⁴¹⁵

2C-T-7 is a Schedule III controlled substance under the Controlled Drugs and Substances Act because it falls within the Act's 2C-phenethylamine structural definition: a 1-amino-2-phenylethane with 2′ and 5′ alkoxy substitution and further benzene-ring substitution. The Schedule III entry has applied since October 31, 2016. Unauthorized possession, production, trafficking, importation, and exportation are prohibited, subject to authorization under the applicable regulations or an exemption under the Act.

Czech RepublicIllegalSeznam I

Government Regulation No. 463/2013 Coll., on Lists of Addictive Substances¹⁸¹⁹

2C-T-7 is listed as Dimethoxypropylthiofenethylamin in List I of psychotropic substances under Government Regulation No. 463/2013 Coll. The Act on Addictive Substances treats the regulation's listed substances as addictive substances; handling includes research, manufacture, processing, acquisition, storage, supply, use, purchase and sale, and requires a Ministry of Health permit. Substances in Annex 4 may be used only for limited research, scientific, and very limited therapeutic purposes specified in that permit, so unpermitted possession, production, and sale are prohibited.

EstoniaIllegalNimekiri I

Narkootiliste ja psühhotroopsete ainete nimekirjad ning nende ainete meditsiinilisel ja teaduslikul eesmärgil käitlemine²¹

Added to Schedule I in February 2011 alongside several other novel psychoactive substances.

GermanyIllegalAnlage I

Betäubungsmittelgesetz²³

Controlled under Anlage I of the Betäubungsmittelgesetz (Narcotics Act) as of July 1, 2001. Manufacturing, possession, import, export, purchase, sale, procurement, and dispensing are illegal without a license.²³

ItalyIllegalTabella I

Decreto del Ministero della salute 11 gennaio 2005²⁶

Added to Tabella I (list of prohibited plants and substances) by Ministry of Health statement on January 11, 2005.

NetherlandsIllegalLijst I

Opiumwet²⁸

The first country to ban 2C-T-7 after brief availability in smartshops. Following the ban on 2C-T-2, 2C-T-7 appeared on the market but was quickly prohibited under List I of the Opium Law.

PolandIllegalI-P

Ustawa o przeciwdziałaniu narkomanii³²

Reported as a Schedule I controlled substance. Possession, production, and distribution are prohibited.

SlovakiaIllegalI. skupina

Act No. 139/1998 Coll. on Narcotic Drugs, Psychotropic Substances and Preparations, as amended by Act No. 468/2009 Coll.³⁴³⁵

Added to Grade 2 (equivalent to Schedule II under the 1971 UN Convention on Psychotropic Substances) in October 2009.

SwedenIllegalFörteckning I

Läkemedelsverkets föreskrifter om förteckningar över narkotika, HSLF-FS 2019:1³⁸

First classified as a health hazard under the Act on the Prohibition of Certain Goods Dangerous to Health (SFS 1999:58) as of April 1, 1999, making it illegal to sell or possess. Subsequently added to Schedule I as of March 16, 2004.

UkraineIllegalСписок № 2

Cabinet of Ministers of Ukraine Resolution No. 770 of 6 May 2000, List of Narcotic Drugs, Psychotropic Substances and Precursors, as amended by Resolution No. 4 of 5 January 2011⁴¹⁴²

Ukraine lists 2C-T-7 (2,5-dimethoxy-4-N-propylthiophenethylamine) in List No. 2 of Table I of the national controlled-substances list. List No. 2 covers especially dangerous psychotropic substances whose circulation is prohibited; the substance has been listed under this classification since the 2011 amendment. The prohibition applies to the substance's circulation in Ukraine.

References

Source Pages

Citations

Suggest an edit

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2C-T-7

2,5-Dimethoxy-4-propylthiophenethylamine

Blue Mystic, Beautiful, 7th Heaven, T7

Psychoactive Class

Psychedelic Entactogen

Chemical Class

2C-X Phenethylamine (substituted)

Dosage & Duration

Dosage

Threshold~3 mg

Light3-15 mg

Moderate15-25 mg

Strong25-40 mg

Heavy40+ mg

Duration

Onset60-90 minutes

Come Up10-30 minutes

Peak3-5 hours

Offset1-3 hours

After Effects2-8 hours

Total6-10 hours

Subjective Effects

Effects vary widely by individual, dose, and context.

Physical

Tactile enhancementTemperature regulation loss

Cognitive

The head space of 2C-T-7 is described by many as one which is both insightful and relatively normal in its thought processes even at moderate to high dosages.

Visual

Distortions

Tracers After images Texture repetition Colour shifting Scenery slicing

Enhancements

Increased visual acuity Enhancement of colour Enhanced pattern recognition

Geometry

Hallucinatory States

External hallucinations

Auditory

The auditory effects of 2C-T-7 are more common in their occurrence than many more commonly used psychedelics.

Enhancements Distortions Hallucinations

Forked from Subjective Effect Documentation

by Josie KinsApril 2014.

Reagent Testing

Loading reagent data

Expected colorimetric results are being prepared.

Pharmacology

Pharmacodynamics

Pharmacokinetics

2C-T-7 is metabolized by the monoamine oxidase enzymes MAO-A and MAO-B.³

Metabolitesnone documented yet

Interactions

Dangerous

Highest risk

These combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.

AMTLithiumPCP

Unsafe

Avoid

There is considerable risk of physical harm when taking these combinations, they should be avoided where possible.

AmphetaminesCocaineDXMTramadol

Caution

Use caution

2C-x compounds5-MeO-xxT tryptaminesCannabisDOx compoundsMAOIsMDMAMescalineMXENBOMe compounds

TripSit

Tolerance

Full Tolerance

2C-T-7 can produce tolerance almost immediately after use. Daily consecutive use substantially reduces effects, and users often need about twice as much on later days for comparable results.

Baseline Reset

5-7 days for most users, though full baseline restoration is typically achieved within 7 days of abstinence.

Half Tolerance

Approximately 3 days

Cross Tolerance

Serotonergic psychedelics

Harm Potential

Addiction & Dependence

Psychological

Extremely Low

2C-T-7 is not habit-forming and is unlikely to cause psychological dependence. The desire to use it often decreases with repeated use, and it is described as self-regulating by most users.

Physical

Extremely Low

2C-T-7 is not physically addicting. Withdrawal effects following discontinuation have not been reported.

Toxicity

Nasal Mucosa

Psychosis Risk

Seizure Risk

History & Culture

Discovery and Development

Trip Reports

Wisdom Through Painon 06/2016— nervewing

Trip Reports

Legality

International

By Country

United StatesIllegalSchedule I

Controlled Substances Act; DEA Final Rule, 69 FR 12794⁴⁴

By state

Texas

IllegalPenalty Group 2 controlled substance

AustriaIllegalAnhang V

Suchtgiftverordnung⁹

Prohibited under the Suchtmittelgesetz (SMG). Possession, production, and sale are illegal.

BrazilIllegalLista F2

Portaria SVS/MS nº 344/1998, Lista F2¹²

Possession, production, and sale are illegal. Listed on Portaria SVS/MS nº 344 as of February 18, 2014.

ChinaIllegal增补目录

非药用类麻醉药品和精神药品列管办法（公通字〔2015〕27号）¹⁶¹⁷

Controlled substance as of October 2015. Illegal to sell, buy, import, export, and manufacture.

DenmarkIllegalListe B

Bekendtgørelse om euforiserende stoffer²⁰

Added to category B of the controlled substances list on August 23, 2003.

FinlandIllegalLiite

Valtioneuvoston asetus huumausaineina pidettävistä aineista, valmisteista ja kasveista 543/2008²²

Scheduled under the government decree on substances, preparations, and plants considered to be narcotic drugs.

GreeceIllegalΠίνακας Α

Law 3459/2006, Article 1 substance tables, as in force under Law 4139/2013²⁴²⁵

Became a controlled substance on February 18, 2003.

LatviaIllegalI saraksts

Ministru kabineta noteikumi Nr. 847²⁷

Classified as a Schedule I controlled substance. Possession, production, and distribution are prohibited.

NorwayIllegalNarkotikalisten

Forskrift om narkotika (narkotikaforskriften)²⁹³⁰³¹

PortugalIllegalTabela II-A

Decreto-Lei n.º 15/93, Tabela II-A³³

Legislation enacted in January 2005 to control 2C-T-7 alongside 2C-I, 2C-T-2, and TMA-2.

SpainIllegalLista I

Orden SCO/2359/2004, de 2 de julio, por la que se incluyen determinadas sustancias en la lista I del anexo I del Real Decreto 2829/1977, de 6 de octubre³⁶³⁷

SwitzerlandIllegalVerzeichnis d

Verordnung des EDI über die Verzeichnisse der Betäubungsmittel, psychotropen Stoffe, Vorläuferstoffe und Hilfschemikalien (BetmVV-EDI; SR 812.121.11)³⁹⁴⁰

Specifically named as a controlled substance under Verzeichnis D of Swiss narcotics legislation.

United KingdomIllegalClass A

Misuse of Drugs Act 1971⁴³

Controlled as a Class A substance under the Misuse of Drugs Act 1971 through the phenethylamine catch-all clause. In 1999, the Home Office effectively placed PiHKAL-associated compounds into Class A.

AustraliaIllegalSchedule 9

Therapeutic Goods (Poisons Standard—February 2026) Instrument 2026⁸

Covered by analogue drug laws and formally added to Schedule 9 (the most restrictive category) by the National Drugs and Poisons Schedule Committee in 2005.

BelgiumIllegal (analog/blanket ban)Bijlage IVA

Royal Decree of 6 September 2017 regulating narcotic drugs and psychotropic substances¹⁰¹¹

Added to the list of illegal psychotropic substances on November 8, 2004.

CanadaIllegalSchedule III

Controlled Drugs and Substances Act¹³¹⁴¹⁵

Czech RepublicIllegalSeznam I

Government Regulation No. 463/2013 Coll., on Lists of Addictive Substances¹⁸¹⁹

EstoniaIllegalNimekiri I

Narkootiliste ja psühhotroopsete ainete nimekirjad ning nende ainete meditsiinilisel ja teaduslikul eesmärgil käitlemine²¹

Added to Schedule I in February 2011 alongside several other novel psychoactive substances.

GermanyIllegalAnlage I

Betäubungsmittelgesetz²³

ItalyIllegalTabella I

Decreto del Ministero della salute 11 gennaio 2005²⁶

Added to Tabella I (list of prohibited plants and substances) by Ministry of Health statement on January 11, 2005.

NetherlandsIllegalLijst I

Opiumwet²⁸

The first country to ban 2C-T-7 after brief availability in smartshops. Following the ban on 2C-T-2, 2C-T-7 appeared on the market but was quickly prohibited under List I of the Opium Law.

PolandIllegalI-P

Ustawa o przeciwdziałaniu narkomanii³²

Reported as a Schedule I controlled substance. Possession, production, and distribution are prohibited.

SlovakiaIllegalI. skupina

Act No. 139/1998 Coll. on Narcotic Drugs, Psychotropic Substances and Preparations, as amended by Act No. 468/2009 Coll.³⁴³⁵

Added to Grade 2 (equivalent to Schedule II under the 1971 UN Convention on Psychotropic Substances) in October 2009.

SwedenIllegalFörteckning I

Läkemedelsverkets föreskrifter om förteckningar över narkotika, HSLF-FS 2019:1³⁸

UkraineIllegalСписок № 2

Cabinet of Ministers of Ukraine Resolution No. 770 of 6 May 2000, List of Narcotic Drugs, Psychotropic Substances and Precursors, as amended by Resolution No. 4 of 5 January 2011⁴¹⁴²

References

Source Pages

Citations

Suggest an edit

Spotted a mistake, an outdated claim, or something missing from the 2C-T-7 article? Send the editors a private note. Feedback lands in a moderation queue and is never shown on the site.

2C-T-7

Contents

Dosage & Duration

Dosage

Duration

Subjective Effects

Physical

Cognitive

Visual

Distortions

Enhancements

Geometry

Hallucinatory States

Auditory

Reagent Testing

Pharmacology

Pharmacodynamics

Pharmacokinetics

Interactions

Dangerous

Unsafe

Caution

Tolerance

Harm Potential

Addiction & Dependence

Psychological

Physical

Toxicity

Psychosis Risk

Seizure Risk

History & Culture

Discovery and Development

Trip Reports

Legality

International

By Country

References

Source Pages

Citations

Further Reading

Suggest an edit

2C-T-7

Contents

Dosage & Duration

Dosage

Duration

Subjective Effects

Physical

Cognitive

Visual

Distortions

Enhancements

Geometry

Hallucinatory States

Auditory

Reagent Testing

Pharmacology

Pharmacodynamics

Pharmacokinetics

Interactions

Dangerous

Unsafe

Caution

Tolerance

Harm Potential

Addiction & Dependence

Psychological

Physical

Toxicity

Psychosis Risk

Seizure Risk

History & Culture

Discovery and Development

Trip Reports

Trip Reports

Legality

International

By Country

References

Source Pages