CRL-40-941 Stats & Data
Fladrafinil
Fluoromodafinil
PubChem
MW325.3
FormulaC15H13F2NO3S
LogP1.8
IUPAC2-[bis(4-fluorophenyl)methylsulfinyl]-N-hydroxyacetamide
InChIKey
VKGUUSVYPXTWMA-UHFFFAOYSA-N
Chemical Class
Lysergamide
Psychoactive Class
Stimulant
Effect Profile
Curated
Stimulant
6.0
Strong anxiety/jitters with moderate euphoria, focus, and stimulation
Stimulation / Energy×3
6
Euphoria / Mood Lift×2
7
Focus / Productivity×2
7
Anxiety / Jitters×1
8
Based on reports from:
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Full tolerance
1h
Half tolerance
10d
Baseline
~14d
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.