1-({[2-(methylsulfonyl)ethoxy]carbonyl}oxy)pyrrolidine-2,5-dione 2,5-pyrrolidinedione, 1-[[[2-(methylsulfonyl)ethoxy]carbonyl]oxy]- InChI=1/C8H11NO7S/c1-17(13,14)5-4-15-8(12)16-9-6(10)2-3-7(9)11/h2-5H2,1H