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Fladrafinil (CRL40,941) 


CRL-40,941 (also known as fladrafinil and fluorafinil) is a eugeroic closely related to adrafinil and modafinil. It is the bis(p-fluoro) ring-substituted derivative of adrafinil. CRL-40,941 was found to produce antiaggressive effects in animals, which adrafinil does not produce.

Specification: Fladrafinil (CRL40,941) ≥99%

Off-white, crystalline powder with a slightly pink color to white powder.
Soluble in methanol, slightly soluble in ethyl acetate and dichloromethane, almost insoluble in water.

Fladrafinil (CRL40,941)Functions

  • Promotes Wakefulness
  • Increases Alertness
  • Heightens Concentration and Focus
  • Improves Memory and Recall
  • Enhances Learning Capacity

Dosage and Stack


New users are recommended to start with the dosage 30-80 mg within 14-16 hours daily, and an adrafinil moderate dose is between 30-100 mg.

Dosage form application

  • Pure powder form without excipients for research use.
  • Tablet or capsule for prescription use.


Fladrafinil works efficiently on its own, but it also stacks very well with other nootropics, such as piracetam, phenylpiracetam, and Noopept.

Why buy Fladrafinil from Nootropicsorigin?

Purity over 99.5% with HPLC test report provided.

Comparing with adrafinil,hydrafinil,flmodafinil.