1-{[3-hydroxy-4-(trifluoromethyl)benzoyl]oxy}pyrrolidine-2,5-dione 2,5-pyrrolidinedione, 1-[[3-hydroxy-4-(trifluoromethyl)benzoyl]oxy]- InChI=1/C12H8F3NO5/c13-12(14,15)7-2-1-6(5-8(7)17)11(20)21-16-9(18)3-4-10(16)19/h1-2,5,17H,3-4H