Diftalonum [INN-Latin], Diftalona [INN-Spanish], Phthalazino[2,3-b]phthalazine-5,12(7H,14H)-dione, Phthalazino<2,3-b>phthalazin-5,12(7H,14H)-dion, Aladione, DIFTALONE, phthalazino<2,3-b>phthalazine-5,12-dione, L 5418, 7H,14H-phthalazino[2,3-b]phthalazine-5,12-dione, Phthalazino<2,3-b>phthalazin-5(14H),12(7H)-dion, phthalazino<2,3-b>phthalazine-5,12-(14H,7H)dione, EINECS 244-484-3