title: N-(4-{4-[2-(Trifluoro-meth-oxy)phen-yl]piperazin-1-yl}but-yl)thio-phene-2-carboxamide dihydrate.
abstract: In the title compound, C(20)H(24)F(3)N(3)O(2)S·2H(2)O, a dopamine D3 ligand, the piperazine ring adopts a chair conformation while the piperazine and benzene rings form a dihedral angle of 47.71 (6)°. In the crystal, mol-ecules are linked by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds. In the mol-ecular structure, the F atoms of the trifluoro-methyl group are disordered over two sites with occupancies of 0.69 (11) and 0.31 (11).
authors.affiliation: School of Chemistry and Chemical Engineering, Institute of Pharmaceutical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Jin
authors.initials: J
authors.lastname: Cai