1,3-dimethyl-4,1-benzoxazepine-2,5(1H,3H)-dione 4,1-benzoxazepine-2,5(1H,3H)-dione, 1,3-dimethyl- InChI=1/C11H11NO3/c1-7-10(13)12(2)9-6-4-3-5-8(9)11(14)15-7/h3-7H,1-2H