Synonyms:
6,7-dimethoxy-1h-benzo[d][1,3]oxazine-2,4-dione ; 6,7-dimethoxy-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione ; 4,5-dimethoxy-isatoic anhydride ; 6,7-dimethoxyisatoic anhydride ; 2h-3,1-benzoxazine-2,4(1h)-dione, 6,7-dimethoxy- ; 6,7-dimethoxy-2h-3,1-benzoxazine-2,4(1h)-dione