title: 4-(3-Nitro-phen-yl)-3-(phenyl-sulfon-yl)but-3-en-2-one.
abstract: The C=C double bond in the title mol-ecule, C(16)H(13)NO(5)S, has an E configuration. The crystal structure is stabilized by C-H⋯O hydrogen bonds. There is also a weak C-H⋯π-ring inter-action in the structure.
authors.forename: Yongjiang
authors.initials: Y
authors.lastname: Wang
authors.forename: Wen
authors.initials: W
authors.lastname: Pei