Title: Etaqualone
CAS Registry Number: 7432-25-9
CAS Name: 3-(2-Ethylphenyl)-2-methyl-4(3H)-quinazolinone
Additional Names: 2-methyl-3-(o-ethylphenyl)-4-quinazolone; ethinazone
Trademarks: Aolan (Beiersdorf)
Molecular Formula: C17H16N2O
Molecular Weight: 264.32
Percent Composition: C 77.25%, H 6.10%, N 10.60%, O 6.05%
Literature References: Prepd by condensation of N-acetylanthranilic acid and 2-ethylaniline with POCl3: BE 615282 (1962 to P. Beiersdorf AG), C.A. 58, 13971ef (1963). Structure-activity studies: Parmar et al., J. Med. Chem. 12, 138 (1969).
Properties: mp 81°.
Melting point: mp 81°
Derivative Type: Hydrochloride
Molecular Formula: C17H16N2O.HCl
Molecular Weight: 300.78
Percent Composition: C 67.88%, H 5.70%, N 9.31%, O 5.32%, Cl 11.79%
Properties: mp 247°.
Melting point: mp 247°
Therap-Cat: Sedative, hypnotic.
Keywords: Sedative/Hypnotic; Quinazolone Derivatives.
eta-Tocopherol Eterobarb Etersalate Ethacrynic Acid Ethadione

Systematic (IUPAC) name
Clinical data
Legal status Unscheduled
CAS number 7432-25-9 YesY
ATC code None
PubChem CID 23914
ChemSpider 22357 YesY
Chemical data
Formula C17H16N2O 
Mol. mass 264.322
 N (what is this?)  (verify)

Etaqualone (Aolan, Athinazone, Ethinazone[1]) is an analogue of methaqualone that was developed in the 1960s[2][3] and marketed mainly in France and some other European countries. It has sedative, hypnotic, muscle relaxant and central nervous system depressant properties, and was used for the treatment of insomnia.