Roidipedia.Compound reference & reporting
06 AUG 2026
CompoundsResearch chemical 3-CEC
Research chemicalCathinoneStimulantResearch chemical

3-CEC

Also known as 3-CEC · 3-Chloroethcathinone

3-CEC (3-chloroethcathinone) is the meta-chloro positional isomer of 4-CEC, a synthetic cathinone stimulant sold as a research chemical. It is very poorly characterised, known mainly from forensic seizures.

01 Overview

3-CEC is a ring-chlorinated, N-ethyl cathinone differing from 4-CEC only in the position of the chlorine on the aromatic ring. Like other meta-substituted cathinones it is reported to lean stimulant, with users describing a short, functional but unremarkable effect.

No controlled human data exist. The compound is documented through seized-material analysis and vendor sampling, and has been scheduled in various jurisdictions under generic or new psychoactive substances legislation.

02 Mechanism

Presumed monoamine releaser/reuptake inhibitor with a stimulant-weighted profile; meta-chloro substitution is generally associated with more stimulant, less serotonergic activity than the para isomer.

03 Dosing

TierDoseRouteNotes
Light30–80 mgInsufflatedHarsh; faster onset.
Light40–80 mgOralAnecdotal only.
Common80–160 mgOralUser-reported range.

04 Effects

EffectMagnitudeEvidence
StimulationEnergy and wakefulness with a stimulant emphasis.Anecdotal
Increased focusShort-lived heightened attention reported by some users.Anecdotal
Increased sociabilityTalkativeness and disinhibition.Anecdotal

05 Side effects

EffectSeverityFrequencyEvidenceCountermeasures
Compulsive redosingShort duration and weak euphoria drive repeated dosing.ModerateCommonAnecdotal
ComedownAnxiety, fatigue and insomnia afterward.ModerateNear-universalAnecdotal
Cardiovascular strainTachycardia, hypertension and palpitations.SevereCommonObservational
Unknown neurotoxicityLong-term neurotoxic potential unstudied.SevereUnknownUnconfirmed

07 References

3-CEC and chlorinated cathinone characterisationPubMed
EUDA — synthetic cathinones drug profileEuropean Union Drugs Agency

08 Discussion0 comments

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This page is reference information, not medical advice. Doses and protocols are documented as they appear in the clinical literature and in practice — describing them is not a recommendation to use them. Countermeasures listed here are not a substitute for a physician. Legal status varies by jurisdiction and changes.