title: (2E,4E)-Ethyl 5-(2,4-di-chloro-phenyl-sulfon-yl)penta-2,4-dienoate.
abstract: In the title compound, C13H12Cl2O4S, both C=C double bonds adopt an E conformation. The S atom has a distorted tetra-hedral geometry with bond angles ranging from 103.03 (12) to 118.12 (13)°. The eth-oxy-carbonyl group is disordered over two sets of sites, with site-occupancy factors of 0.739 (11) and 0.261 (11). In the crystal, C-H⋯O inter-actions link the mol-ecules into chains mol-ecules running parallel to the a axis.
authors.affiliation: Department of Chemistry, Pachaiyappa's College, Chennai 600 030, India.
authors.forename: U
authors.initials: U
authors.lastname: Sankar
authors.affiliation: Department of Physics, Presidency College, Chennai 600 005, India.
authors.forename: V
authors.initials: V
authors.lastname: Sabari
authors.affiliation: Department of Chemistry, Pachaiyappa's College, Chennai 600 030, India.
authors.forename: S
authors.initials: S
authors.lastname: Mahalakshmi
authors.affiliation: Department of Chemistry, B.S. Abdur Rahman University, Chennai 600 048, India.
authors.forename: K K
authors.initials: KK
authors.lastname: Balasubramanian
authors.affiliation: Department of Physics, Presidency College, Chennai 600 005, India.
authors.forename: S
authors.initials: S
authors.lastname: Aravindhan