Synonyms: 1,3-Benzoxazine-2,4-dione;2,4-Dioxo-3,4-dihydro-2H-1,3-benzoxazine;3,4-Dihydro-1,3-benzoxazine-2,4-dione; 3,4-Dihydro-1,3-benzoxazine-3,4-dione;4H-1,3-Benzoxazine-2,4(3H)-dione; Beaprine; CSA; Carbonylsalicylamide;Carsalam; NSC 36166; Oxophenhydroxazine; Ruhmal