fenadiazole fenadiazole fenadiazole (inn), also known as phénadiazole (dcf) and sold under the brand names hypnazol, eudormil, and viodor, is a hypnotic and sedative medication which has been used to treat insomnia but is no longer marketed. it is described as a non-barbiturate hypnotic with marked or profound hypnotic and sedative properties in animals, variable hypnotic effects in humans (rapidly inducing sleep for 6 to 8 hours), additional anticonvulsant, antithermal, and spasmolytic effects, and a generally well-tolerated profile in humans (at an average dosage of 200 mg/day). the drug was synthesized, pharmacologically characterized, patented, and marketed by the french pharmaceutical company laboratoires jacques logeais between 1960 and 1962. as a hypnotic and sedative, fenadiazole has a unique oxadiazole-based chemical structure. it may be chemically related to certain other hypnotics and sedatives with atypical chemical structures. fenadiazoleclinical datatrade nameshypnazol, eudormil, viodorother namesfenadiazol; fenadiazolum; fenodiazole; phénadiazole; phenadiazole; jl-512; j. l. 512; nsc-100729; 2-(o-hydroxyphenyl)-1,3,4-oxadiazole; 2-(2-hydroxyphenyl)-1,3,4-oxadiazole; o-1,3,4-oxadiazol-2-ylphenolroutes ofadministrationby mouthatc codenoneidentifiers iupac name 2-(1,3,4-oxadiazol-2-yl)phenol cas number1008-65-7 ypubchem cid5380573chemspider11595729 yunii8yx6hiz0ipchebichebi:134791chemblchembl1903897 ycomptox dashboard (epa)dtxsid7057608 echa infocard100.206.148 chemical and physical dataformulac8h6n2o2molar mass162.148 g·mol−13d model (jsmol)interactive image smiles c1=cc=c(c(=c1)c2=nn=co2)o inchi inchi=1s/c8h6n2o2/c11-7-4-2-1-3-6(7)8-10-9-5-12-8/h1-5,11h nkey:oinxxhyenyvypb-uhfffaoysa-n n (verify)