1-(4-(Diethylamino)-2-butynyl)-3-phenyl-2,4(1H,3H)-quinazolinedione 17656-19-8 2,4(1H,3H)-Quinazolinedione, 1-(4-(diethylamino)-2-butynyl)-3-phenyl- 5-24-07-00493 (Beilstein Handbook Reference) BRN 0716560