Buy Fladrafinil (CRL-40,941) is a high-purity research nootropic powder. Laboratories and researchers use it to study wakefulness-promoting agents, dopamine reuptake inhibition, and cognitive enhancement mechanisms.
What is Fladrafinil?
Fladrafinil, also known as CRL-40,941 or Bisfluoromodafinil, is a fluorinated analog of modafinil. It was developed as a more potent successor to modafinil with improved bioavailability and stronger wakefulness-promoting effects. It acts primarily as a selective dopamine reuptake inhibitor and is researched for its ability to enhance alertness, focus, and cognitive performance. Sold strictly for laboratory and research purposes only.
Chemical Properties of Buy Fladrafinil (CRL-40,941)
- IUPAC Name: 2-[bis(4-fluorophenyl)methylsulfinyl]acetamide
- CAS Number: 90212-80-9
- Molecular Formula: C₁₅H₁₃F₂NO₂S
- Molar Mass: 309.33 g/mol
- Appearance: White to off-white crystalline powder
- Solubility: Poorly soluble in water; soluble in organic solvents like DMSO and ethanol
- Key Features: Bis-fluorinated structure provides higher lipophilicity and better blood-brain barrier penetration than modafinil.
Effects (Research Observations)
Fladrafinil is studied as a potent eugeroic (wakefulness-promoting) compound. Reported research observations include:
- Strong increase in alertness, focus, and mental clarity
- Enhanced motivation and cognitive performance
- Reduced fatigue and improved executive function
- Longer duration of action compared to modafinil
- Onset: 30–90 minutes
- Duration: 8–12+ hours
Important Note: These are not approved medical effects. Potential side effects include insomnia, headache, anxiety, increased heart rate, and appetite suppression. Strictly for research use only — not for human consumption.
Legality of Buy Fladrafinil (CRL-40,941)
Fladrafinil exists in a legal gray area in most countries:
- United States: Unscheduled federally but sold for research only (not FDA-approved)
- United Kingdom / EU: Generally legal for research but not for human consumption
- Canada / Australia: Sold as a research chemical only
Always verify current local laws. Vendors sell it exclusively for laboratory/research purposes.
Buy Fladrafinil (CRL-40,941) from trusted research chemical and nootropic suppliers offering lab-tested, high-purity products with discreet shipping and compliance documentation.




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