CRL-40,941

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; it is purportedly 3–4 times more potent than adrafinil.