Library

Butilone

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.

Butilone molecular structure
Butilone 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.

Links

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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

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