4F-MABP Stats & Data
4-fbp
Para-fluorobuphedrone
PubChem
MW195.23
FormulaC11H14FNO
LogP2.2
IUPAC1-(4-fluorophenyl)-2-(methylamino)butan-1-one
InChIKey
NEZHKHMZNSFKGS-UHFFFAOYSA-N
Chemical Class
Cathinone
Psychoactive Class
Stimulant
Effect Profile
Curated
Stimulant
4.1
Strong anxiety/jitters with moderate euphoria, mild focus, low stimulation
Stimulation / Energy×3
3
Euphoria / Mood Lift×2
7
Focus / Productivity×2
5
Anxiety / Jitters×1
10
Based on reports from:
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Full tolerance
1h
Half tolerance
4d
Baseline
~5d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.