21162-93-6 3-(2-(Diethylamino)ethyl)-2,3-dihydro-4H-1,3-benzoxazin-4-one 3-(beta-Diethylaminoethyl)-2,3-dihydro-4H-1,3-benzoxazin-4-one 4H-1,3-BENZOXAZIN-4-ONE, 3-(2-(DIETHYLAMINO)ETHYL)-2,3-DIHYDRO- BRN 1579451