35739-56-1 4(3H)-Quinazolinone, 7-butoxy-3-(2-(diethylamino)ethyl)-, oxalate (1:1) 7-Butoxy-3-(2-(diethylamino)ethyl)-4(3H)-quinazolinone oxalate 7-n-Butoxy-3-(2-diethylaminoethyl)-3,4-dihydro-4-oxoquinazoline oxalate