3C-E (3-carbon escaline; chemically 2-(4-ethoxy-3,5-dimethoxyphenyl)-1-aminopropane) is a synthetic psychedelic compound belonging to the substituted amphetamine class and the phenethylamine family. It was first described by Alexander Shulgin in his 1991 compendium PiHKAL: A Chemical Love Story as compound #7, where it is noted for producing particularly challenging, demanding psychedelic experiences. Despite its structural classification as a substituted amphetamine — sharing the 2-aminopropyl chain with MDMA and DOM — 3C-E is a pure psychedelic with negligible entactogenic or stimulant character.
3C-E is the 3-carbon (propyl spacer) homolog of escaline, distinguished from 2C-E (2-carbon spacer) by the additional carbon in the aminoalkyl chain. This modification substantially extends both duration and potency. Users and Shulgin's own reports characterize 3C-E as one of the most intense and demanding compounds in the phenethylamine series — producing rich, complex, and frequently confrontational psychedelic states lasting 8–12 hours, with strong visual and cognitive effects that require significant experience and preparation to navigate productively.
Safety at a Glance
High Risk- Threshold: 20–35 mg | Common: 35–55 mg | Strong: 55–70 mg
- Allow at minimum 2 hours after oral ingestion before drawing conclusions about dose adequacy.
- Toxicity: Acute Toxicity Like related phenethylamine psychedelics, 3C-E has an unknown but presumed low acute toxicity in terms...
- Overdose risk: Fatal overdose from 3C-E alone, at doses within the typical recreational range, is extremely unli...
If someone is in crisis, call 911 or Poison Control: 1-800-222-1222
Dosage
insufflated
oral
Duration
insufflated
Total: 5 hrs – 12 hrsoral
Total: 10 hrs – 16 hrsHow It Feels
The onset arrives over the course of sixty to ninety minutes as a gradually building stimulant energy that distinguishes itself from other psychedelics by its sheer physical momentum. The heart rate rises noticeably, and a bright, sharp alertness settles into the mind. There is a buzzing quality to the energy -- not anxious, but electric, as though the central nervous system has been tuned to a higher frequency. Appetite vanishes. The body feels lean and eager, primed for activity. The first visual changes appear as a subtle enhancement of color and contrast, but the cognitive stimulation clearly leads the perceptual effects during the come-up.
By the two-hour mark, the psychedelic component has caught up with the stimulant foundation. Visual effects are moderate and precise -- clean, sharp-edged geometric patterns that overlay surfaces with a technical, almost digitally-rendered quality. Colors are vivid and saturated, with a particular emphasis on cool tones: blues, teals, and silvers appear with striking clarity. There is an analytical crispness to the visual field that mirrors the cognitive state. The world looks optimized rather than transformed. Closed-eye visuals present as precise, rapidly shifting structures -- circuit-board geometries and lattice frameworks that feel computational in nature.
The headspace is characterized by intense mental stimulation. Thoughts are rapid, fluid, and remarkably lucid. There is a sense of cognitive expansion -- the ability to hold multiple complex ideas simultaneously and examine them from numerous angles. Creative and analytical thinking both feel enhanced. Conversation is easy and engaging, with ideas flowing freely and articulately. The emotional tone is positive but restrained -- more intellectual excitement than euphoric warmth. The body load is primarily stimulant in character: elevated heart rate, jaw tension, occasional muscle tightness, and a persistent energy that resists relaxation.
The duration is notable. Effects sustain for eight to twelve hours, with the stimulant component often outlasting the psychedelic effects. The descent is slow and can be frustrating, as the visual and introspective content fades while the physical stimulation persists. Sleep is difficult to achieve until the very tail end of the experience. The aftermath typically includes significant fatigue, appetite return, and a need for recovery sleep. The overall experience reads as a hybrid -- half psychedelic, half stimulant -- that rewards those seeking enhanced creative output or extended analytical exploration.
Subjective Effects
The effects listed below are based on the Subjective Effect Index (SEI), an open research literature based on anecdotal reports and personal analyses. They should be viewed with a healthy degree of skepticism. These effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects.
Physical Effects
Physical(21)
- Appetite suppression— A distinct decrease in hunger and desire to eat, ranging from reduced interest in food to complete d...
- Bodily control enhancement— Bodily control enhancement is the subjective feeling of improved physical precision, coordination, a...
- Body load— A diffuse, heavy physical discomfort involving tension, pressure, and malaise in the torso and limbs...
- Dehydration— A state of insufficient bodily hydration manifesting as persistent thirst, dry mouth, and physical d...
- Diarrhea— Diarrhea is the occurrence of frequent, loose, or watery bowel movements as a side effect of certain...
- Difficulty urinating— Difficulty urinating, also known as urinary retention, is the experience of being unable to easily p...
- Dry mouth— A persistent, uncomfortable reduction in saliva production causing the mouth and throat to feel parc...
- Increased blood pressure— Increased blood pressure (hypertension) is an elevation of arterial pressure above the normal 120/80...
- Increased heart rate— A noticeable acceleration of heartbeat that can range from a subtle awareness of one's pulse to a fo...
- Increased libido— A marked enhancement of sexual desire, arousal, and sensitivity to erotic stimuli that can range fro...
- Increased salivation— Increased salivation (hypersalivation or sialorrhea) is the excessive production of saliva beyond wh...
- Laughter fits— Spontaneous, uncontrollable, and often prolonged episodes of intense laughter that erupt without any...
- Nausea— An uncomfortable sensation of queasiness and stomach discomfort that may or may not lead to vomiting...
- Physical euphoria— An intensely pleasurable bodily sensation that can manifest as waves of warmth, tingling electricity...
- Pupil dilation— A visible enlargement of the pupil diameter (mydriasis) that can range from subtle widening to drama...
- Sedation— A state of deep physical and mental calming that manifests as a progressive desire to remain still, ...
- Seizure— Uncontrolled brain electrical activity causing convulsions and loss of consciousness -- a life-threa...
- Stimulation— A state of heightened physical and mental energy characterized by increased wakefulness, elevated mo...
- Teeth grinding— An involuntary clenching and rhythmic grinding of the jaw muscles, known clinically as bruxism, that...
- Temperature regulation disruption— Impaired thermoregulation causing unpredictable fluctuations between feeling hot and cold, with risk...
- Vasoconstriction— A narrowing of blood vessels throughout the body that produces sensations of cold extremities, tingl...
Tactile(1)
- Tactile enhancement— The sense of touch becomes dramatically heightened, making physical contact feel intensely pleasurab...
Cognitive & Perceptual Effects
Visual(16)
- After images— A visual phenomenon in which a faint, ghostly imprint of a previously viewed image persists in the v...
- Brightness alteration— Perceived increase or decrease in environmental brightness beyond actual illumination levels, common...
- Colour enhancement— An intensification of the brightness, vividness, and saturation of colors in the external environmen...
- Colour shifting— The visual experience of colors on objects and surfaces cycling through continuous, fluid transforma...
- Depth perception distortions— Alterations in how the distance of objects within the visual field is perceived, causing layers of s...
- Diffraction— The experience of seeing rainbow-like spectrums of color and prismatic halos embedded within bright ...
- Drifting— The visual experience of perceiving stationary objects, textures, and surfaces as appearing to flow,...
- Geometry— The experience of perceiving complex, ever-shifting geometric patterns superimposed over the visual ...
- Internal hallucination— Vivid, detailed visual experiences perceived within an imagined mental landscape that can only be se...
- Pattern recognition enhancement— An increased ability and tendency to perceive meaningful patterns, faces, and images within ambiguou...
- Perspective distortions— Distortion of perceived depth, distance, and size of real objects, making things appear closer, furt...
- Settings, sceneries, and landscapes— The perceived environment in which hallucinatory experiences take place, ranging from recognizable l...
- Symmetrical texture repetition— Textures appear to mirror and tessellate across surfaces in intricate, self-similar symmetrical patt...
- Tracers— Moving objects leave visible trails of varying length and opacity behind them, similar to long-expos...
- Transformations— Objects and scenery undergo perceived visual metamorphosis, smoothly shapeshifting into other recogn...
- Visual acuity enhancement— Vision becomes sharper and more defined than normal, as though a slightly blurry lens has been broug...
Cognitive(17)
- Analysis enhancement— A perceived improvement in one's ability to logically deconstruct concepts, recognize patterns, and ...
- Anxiety— Intense feelings of apprehension, worry, and dread that can range from a subtle background unease to...
- Cognitive euphoria— A cognitive and emotional state of intense well-being, elation, happiness, and joy that manifests as...
- Conceptual thinking— A shift in the nature of thought from verbal, linear sentence structures to intuitive, non-linguisti...
- Confusion— An impairment of abstract thinking marked by a persistent inability to grasp or comprehend concepts ...
- Immersion enhancement— A heightened capacity to become fully absorbed and engrossed in external media such as music, films,...
- Increased sense of humor— A general amplification of one's sensitivity to finding things humorous and amusing, often causing p...
- Introspection— An enhanced state of self-reflective awareness in which one feels drawn to examine their own thought...
- Memory suppression— A dose-dependent inhibition of one's ability to access and utilize short-term and long-term memory, ...
- Novelty enhancement— A feeling of increased fascination, awe, and childlike wonder attributed to everyday concepts, objec...
- Paranoia— Irrational suspicion and belief that others are watching, plotting against, or intending harm toward...
- Personal bias suppression— A decrease in the personal, cultural, and cognitive biases through which one normally filters their ...
- Psychosis— Psychosis is a serious psychiatric state involving a fundamental break from consensus reality — char...
- Thought acceleration— The experience of thoughts occurring at a dramatically increased rate, as if the mind has been shift...
- Thought connectivity— A state in which disparate thoughts, concepts, and ideas become fluidly and spontaneously interconne...
- Time distortion— Subjective perception of time becomes dramatically altered — minutes may feel like hours, or hours p...
- Wakefulness— An increased ability to stay awake and alert without the desire to sleep. Distinct from stimulation ...
Multi-sensory(2)
- Scenarios and plots— Scenarios and plots are the narrative structures that emerge within hallucinatory states — coherent ...
- Synaesthesia— Stimulation of one sense triggers involuntary experiences in another — seeing sounds as colors, tast...
Transpersonal(3)
- Ego death— A profound dissolution of the sense of self in which personal identity, memories, and the boundary b...
- Existential self-realization— A sudden, visceral realization of the profound significance and improbability of one's own existence...
- Unity and interconnectedness— A profound sense that identity extends beyond the self to encompass other people, nature, or all of ...
Pharmacology
Mechanism of Action
3C-E's psychedelic effects are mediated primarily through partial agonism at 5-HT2A serotonin receptors, the universal target of classical psychedelics. Like mescaline, escaline, and the 2C-x series, it activates the Gq and β-arrestin signaling cascades downstream of 5-HT2A activation in prefrontal cortical layer V pyramidal neurons, disrupting the brain's predictive processing hierarchy and producing the characteristic perceptual and cognitive alterations.
Structural Relationship to 2C-E
The "3C" designation refers to the three-carbon chain between the phenyl ring and the amine group, versus the two-carbon chain in the 2C-x family (which Shulgin termed "phenethylamines"). This homologation produces a pharmacologically distinct compound with substantially different duration and potency despite the similar structural template. The extended aliphatic chain alters both metabolic vulnerability and receptor binding kinetics.
Additional Receptors
As with related phenethylamine psychedelics, activity at 5-HT2C,5-HT2B, alpha-adrenergic, and dopaminergic receptors contributes to stimulant, anxiogenic, and physiological side effects. Selective 5-HT2A agonism relative to these secondary targets is not achieved with currently known phenethylamine psychedelics.
Pharmacokinetics
3C-E is orally active at doses of 20–60 mg. Onset is gradual — typically 60–120 minutes — reflecting the slower absorption and metabolic activation pathway characteristic of substituted phenethylamines. Peak effects occur at 3–5 hours, with total duration of 8–12 hours. The extended duration relative to mescaline and escaline is attributed to the modified metabolic profile of the 3-carbon chain.
Detection Methods
Urine Detection
3C-E is not specifically targeted by standard immunoassay-based urine drug panels. However, because 2C-x phenethylamines share structural features with amphetamines, they may trigger false positives on amphetamine immunoassays in some cases. The likelihood of cross-reactivity depends on the specific immunoassay manufacturer and the antibody selectivity used. Urine detection windows for 3C-E are estimated at 24 to 72 hours following ingestion when analyzed by LC-MS/MS methods, though limited pharmacokinetic data exists for many 2C-x compounds.
Blood and Serum Detection
Blood detection windows for 3C-E are approximately 6 to 24 hours after oral administration. Peak plasma concentrations typically occur 1 to 3 hours post-ingestion. The relatively short half-lives of most 2C-x phenethylamines mean that blood testing must be performed promptly to capture detectable concentrations. LC-MS/MS is the only reliable method for quantitative blood analysis.
Standard Drug Panel Inclusion
3C-E is NOT specifically included on standard 5-panel, 10-panel, or 12-panel drug screens. The primary concern for individuals undergoing routine screening is the potential for amphetamine cross-reactivity on immunoassay-based panels. If a presumptive positive for amphetamines occurs, confirmatory testing by GC-MS or LC-MS/MS would not confirm amphetamine and the result would be reported as negative unless the laboratory specifically tests for 2C-x compounds. Most routine laboratories do not include 2C-x phenethylamines in their confirmatory panels.
Confirmatory Methods
Definitive identification of 3C-E requires LC-MS/MS or GC-MS with appropriate reference standards. Some forensic toxicology laboratories include 2C-x phenethylamines in their extended novel psychoactive substance panels. Immunoassay cross-reactivity alone is insufficient for confirmation and would be resolved by standard confirmatory procedures. Quantitative analysis typically requires specific method development as these compounds are not part of routine clinical chemistry workflows.
Reagent Testing (Harm Reduction)
For harm reduction identification, the Marquis reagent is a primary screening tool for 3C-E. The Marquis reagent produces a variable reaction with 3C-E, typically brown to green. As a 3-carbon chain phenethylamine (amphetamine analog), cross-reactivity with amphetamine immunoassays may be more likely than for 2C-x compounds. The Mecke reagent may provide additional color reactions that help differentiate between specific 2C-x variants. The Ehrlich reagent shows no reaction with 2C-x phenethylamines, which can help distinguish them from tryptamines and lysergamides. The Mandelin reagent may produce green to brown reactions depending on the specific compound. Using multiple reagents in combination provides the most reliable field identification, though reagent testing cannot determine purity or dosage.
Interactions
| Substance | Status | Note |
|---|---|---|
| 3-FMA | Caution | Increases anxiety, cardiovascular stress, and psychological intensity |
| 4-MMC | Caution | Increases anxiety, cardiovascular stress, and psychological intensity |
| 8-Chlorotheophylline | Caution | Increases anxiety, cardiovascular stress, and psychological intensity |
| Adrafinil | Caution | Increases anxiety, cardiovascular stress, and psychological intensity |
| Anandamide | Caution | Cannabis can unpredictably intensify psychedelic effects and increase anxiety |
| Cannabis | Uncertain | — |
| 1,3-Butanediol | Low Risk & Synergy | Cross-tolerance exists; effects compound |
| 25E-NBOH | Low Risk & Synergy | Cross-tolerance exists; effects compound |
| 2C-T | Low Risk & Synergy | Cross-tolerance exists; effects compound |
| 2C-T-2 | Low Risk & Synergy | Cross-tolerance exists; effects compound |
History
Shulgin's Synthesis and Documentation
3C-E was synthesized and characterized by Alexander Shulgin in the 1970s–1980s, appearing as Compound #7 in PiHKAL (1991). Shulgin evaluated it in the 30–50 mg range and described it as among the most powerful and challenging compounds in his extensive phenethylamine series, noting experiences of unusual depth, difficulty, and occasionally disturbing content.
Position in the Phenethylamine Literature
PiHKAL served as the primary pharmacological reference for 3C-E, as it did for most obscure substituted phenethylamines. The compound remained a relatively esoteric research chemical with low commercial presence compared to 2C-E or mescaline, primarily known within the community of Shulgin enthusiasts willing to explore the demanding end of the phenethylamine spectrum.
Legal Status
3C-E is not specifically scheduled in most jurisdictions but falls within the scope of analogue legislation in the United States (Federal Analogue Act), the UK (Psychoactive Substances Act 2016), and similar laws in European countries. Its status is legally precarious despite the absence of explicit scheduling in most drug laws.
Harm Reduction
Set and Setting
Given 3C-E's reputation for intense and challenging states, set and setting management is especially important. This compound is not appropriate for first-time psychedelic users or those without experience navigating difficult experiences. A trusted, sober trip sitter is strongly recommended.
Dose Guidelines
- Threshold: 20–35 mg |Common: 35–55 mg |Strong: 55–70 mg
- Shulgin's notes describe 30–50 mg as producing experiences of "extraordinary depth and complexity." Start at the low end; the long duration means an insufficient dose at 2 hours is not an indication to redose — effects continue developing for several more hours.
- Allow at minimum 2 hours after oral ingestion before drawing conclusions about dose adequacy.
Duration Planning
Allocate a full day and evening (12–14 hours) and do not take 3C-E if the following day requires any demanding obligations. The extended duration produces significant fatigue in the resolution phase.
Reagent Testing
Phenethylamine psychedelics are not identified by Ehrlich reagent (which detects indoles). Use Marquis (expected: no reaction or faint brown — not orange-black as for amphetamines),Mecke (blue-green for methoxy-substituted phenethylamines), orSimon's to help characterize the compound. The absence of an Ehrlich reaction confirms the compound is not LSD or a related indole.
Contraindications
- Personal or family history of schizophrenia, schizoaffective disorder, or bipolar I
- Current MAOI use
- Cardiovascular disease or hypertension
Toxicity & Safety
Acute Toxicity
Like related phenethylamine psychedelics, 3C-E has an unknown but presumed low acute toxicity in terms of organ damage. No fatalities attributed specifically to 3C-E pharmacological action have been documented. The primary risks are psychological, cardiovascular, and behavioral (impaired judgment leading to accidents).
Cardiovascular Effects
Alpha-adrenergic and noradrenergic activity produce elevated heart rate, increased blood pressure, and vasoconstriction. These effects are more pronounced than with the classical indole psychedelics (LSD, psilocybin) and represent significant risk for individuals with cardiovascular disease.
Psychological Risks
3C-E is consistently characterized as one of the more demanding phenethylamine psychedelics. Shulgin himself described it as producing particularly intense and challenging states. Acute panic, dissociation, and psychosis-like states are dose-dependent risks, and the extended 8–12 hour duration means a difficult experience is a prolonged ordeal. Personal or family history of psychotic illness or bipolar disorder is an absolute contraindication.
Duration as a Safety Factor
The 8–12 hour duration substantially increases logistical risks — exposure to traffic, social situations, or other hazards during a prolonged period of cognitive impairment. Planning for the full duration is critical.
Addiction Potential
not habit-forming
Overdose Information
Fatal overdose from 3C-E alone, at doses within the typical recreational range, is extremely unlikely based on the available evidence for classical psychedelics. The therapeutic index for most psychedelics is very wide.
However, psychological emergencies can occur and require appropriate response:
- Severe anxiety, panic, or psychotic episodes
- Dangerous behavior due to impaired reality testing
- Self-harm in the context of a distressing experience
Emergency management: If someone is experiencing a severe adverse reaction, move them to a calm, quiet environment. Speak reassuringly. Do not restrain unless there is immediate danger. Benzodiazepines (if available and the person is conscious and able to swallow) can reduce acute anxiety. If psychotic symptoms, self-harm risk, or medical distress is present, seek emergency medical attention.
Medical attention: Seek help immediately for seizures, extremely elevated body temperature, signs of serotonin syndrome (agitation, tremor, diarrhea, rapid heart rate), or if the substance consumed is uncertain.
Tolerance
| Full | almost immediately after ingestion |
| Half | 3 days |
| Zero | 7 days |
Cross-tolerances
Legal Status
Germany: 3C-E is controlled under the NpSG (New Psychoactive Substances Act) as of November 26, 2016. Production and import with the aim to place it on the market, administration to another person and trading is punishable. Possession is illegal but not penalized.
Japan: 3C-E is a controlled substance in Japan effective March 25th, 2015.
Switzerland: 3C-E can be considered a controlled substance as a defined derivative of a-methylphenethylamine under Verzeichnis E point 130. It is legal when used for scientific or industrial use.
United Kingdom: It is illegal to produce, supply, or import this drug under the Psychoactive Substance Act, which came into effect on May 26th, 2016.
United States: 3C-E is technically not scheduled in the United States, but could be considered an analog of mescaline and may, therefore, be considered a Schedule I drug under the Federal Analogue Act.
Responsible use
Psychoactive substance index
Mescaline
Psychedelics
3C-E (Wikipedia)
3C-E (PiHKAL / Isomer Design)
Experience Reports (1)
Tips (4)
Start low with 3C-E and wait for full onset before redosing. Stimulant redosing extends duration and side effects more than it extends euphoria, while adding cardiovascular strain. Set a firm limit before you start.
Do not combine 3C-E with MAOIs or other serotonergic drugs. Many stimulants have serotonergic activity, and combinations can cause serotonin syndrome or hypertensive crisis, both medical emergencies.
Do not take 3C-E in the afternoon or evening if you want to sleep that night. Most stimulants have long half-lives and even if you feel you can sleep, the quality will be significantly impaired.
Eat a substantial meal before taking 3C-E. Stimulants suppress appetite heavily, and going many hours without food leads to worse crashes, irritability, and cognitive impairment. Set phone reminders to eat and drink.
See Also
Same Class
References (4)
- Psilocybin produces substantial and sustained decreases in depression and anxiety — Griffiths et al. Journal of Psychopharmacology (2016)paper
- Neural correlates of the LSD experience revealed by multimodal neuroimaging — Carhart-Harris et al. PNAS (2016)paper
- 3C-E - TripSit Factsheet
TripSit factsheet for 3C-E
tripsit - 3C-E - Wikipedia
Wikipedia article on 3C-E
wikipedia