Butylone is a synthetic entactogen and stimulant of the substituted cathinone class. It is the β-keto analogue of MBDB and bears a structural relationship to methylone analogous to that between MBDB and MDMA. First synthesized in 1967, it remained academically obscure until 2005 when it emerged as a designer drug. Butylone is frequently sold as a substitute or counterfeit for MDMA and methylone under the collective street label "Molly," though its subjective effects are not identical to either substance.
Butilona molecular structure diagram from the DrugsPRO substance library.
Also known as: B1, Βk-mbdb, Bk-methyl-j, Beta‑keto‑MBDB
Classification
Chemical: Cathinone
Psychoactive: Entactogen
Psychoactive: Psychedelic
Psychoactive: Stimulant
Tag: Empathogen
Tag: Habit-Forming
Tag: MDxx
Tag: Research-Chemical
Tag: Synthetic cathinone
Effects
Stimulation
Increased Heart Rate
Increased Blood Pressure
Increased Perspiration
Physical Energy
Teeth Grinding
Euphoria
Empathy Love And Sociability Enhancement
Empathy Enhancement
Sociability Enhancement
Anxiety
Cognitive Euphoria
Increased Music Appreciation
Increased Libido
Spontaneous Physical Sensations
Tactile Enhancement
Open Eye Visuals
Disinhibition
Routes of Administration
Oral
Dosage
Heavy: 200+ mg
Light: 30 – 70 mg
Common: 70 – 120 mg
Strong: 120 – 200 mg
Threshold: 20-40 mg
Duration
Onset: 0.33-0.75 h
Peak: 1-2.5 h
Offset: 1-2 h
After Effects: 0.5-4 h
Total Duration: 3.5-6.5 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
This static page is intended as a readable non-JS and prerender-friendly library export.
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Butylone - Guía de sustancias de DrugsPRO
Butylone: Butylone is a synthetic entactogen and stimulant of the substituted cathinone class. It is the β-keto analogue of MBDB and bears a structural relationship to methylone analogous to that between MBDB and MDMA. First synthesized in 1967, it remained academically obscure until 2005 when it em