Etaqualone / Ethinazone, IUPAC name: '3-(2-ethylphenyl)-2-methyl-quinazolin-4-one' is an analogue of methaqualone (a general CNS depressant).

2-methyl-3-(2-methylphenyl)-4-(3H)-quinazolinone (Methaqualone)
2-methyl-3-(2-ethylphenyl)-4-(3H)-quinazolinone (Ethaqualone)

Chemsupply.eu is the first to stock Etaqualone in the UK!