crl-40,941 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, and is purportedly 3 - 4 times stronger than adrafinil. crl-40,941clinical dataother namesfluorafinil, fladrafinilroutes ofadministrationoralatc codenonelegal statuslegal status us: not approved identifiers iupac name 2--n-hydroxyacetamide cas number90212-80-9 npubchem cid13316557chemspider29785194 nunii5rt6x0m01fcomptox dashboard (epa)dtxsid40536590 chemical and physical dataformulac15h13f2no3smolar mass325.33 g·mol−13d model (jsmol)interactive image smiles c1=cc(=cc=c1c(c2=cc=c(c=c2)f)s(=o)cc(=o)no)f inchi inchi=1s/c15h13f2no3s/c16-12-5-1-10(2-6-12)15(22(21)9-14(19)18-20)11-3-7-13(17)8-4-11/h1-8,15,20h,9h2,(h,18,19) nkey:vkguusvypxtwma-uhfffaoysa-n n ny (what is this?) (verify)