The molecule is a butan-4-olide having a [1-(4-nitrophenylsulfonyl)oxy]ethyl group at the 3-position and two methyl substituents at the 5-position. It is a butan-4-olide, an arenesulfonate ester and a C-nitro compound.
1-(5,5-dimethyl-2-oxooxolan-3-yl)ethyl 4-nitrobenzenesulfonate