Title: Fenadiazole
CAS Registry Number: 1008-65-7
CAS Name: 2-(1,3,4-Oxadiazol-2-yl)phenol
Additional Names: 2-(o-hydroxyphenyl)-1,3,4-oxadiazole
Trademarks: Hypnazol (Logeais)
Molecular Formula: C8H6N2O2
Molecular Weight: 162.15
Percent Composition: C 59.26%, H 3.73%, N 17.28%, O 19.73%
Literature References: Prepn: Maillard et al., Bull. Soc. Chim. Fr. 1961, 529; Vincent et al., ibid. 1962, 1580; GB 902388 and Maillard et al., FR M379 C.A. 57, 15251g (1962) (both 1962 to Logeais Labs.).
Properties: Crystals from methanol, mp 111-112°. bp0.1 180°.
Melting point: mp 111-112°
Boiling point: bp0.1 180°
Therap-Cat: Hypnotic.
Keywords: Sedative/Hypnotic.
Status: This monograph has been retired and is no longer subject to revision or update.
Fenalamide Fenalcomine Fenamidone Fenamiphos Fenapanil

Fenadiazole small.png
Systematic (IUPAC) name
Clinical data
Legal status  ?
Routes oral
CAS number 1008-65-7 YesY
ATC code None
PubChem CID 5380573
Chemical data
Formula C8H6N2O2 
Mol. mass 162.14544 g/mol
 YesY (what is this?)  (verify)

Fenadiazole (Hypnazol, Eudormil, Viodor) is a hypnotic drug[1] with a unique oxadiazole-based structure.[2] It was previously manufactured by the French pharmaceutical company Laboratoires Jacques Logeais.[3] Its pharmacology is unclear, but it may act on GABA receptors.[citation needed]