16064-26-9 3,4-Dihydro-4-oxo-7-quinazolinesulfonamide 5-25-09-00217 (Beilstein Handbook Reference) 7-Quinazolinesulfonamide, 3,4-dihydro-4-oxo- BRN 0959693 Sulfamido-7 (3H) quinazolinone-4 [French]