title: 2-[(Phenyl-carbamo-yl)amino]-butyl N-phenyl-carbamate.
abstract: In the title compound, C(18)H(21)N(3)O(3), the terminal phenyl rings make a dihedral angle of 86.3 (5)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds into chains along [001], forming parallel C(4) and R(1) (2)(6) graph-set motifs.
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD,  England.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.forename: Goran A
authors.initials: GA
authors.lastname: Bogdanović
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.forename: Antar A
authors.initials: AA
authors.lastname: Abdelhamid
authors.forename: Sabry H H
authors.initials: SH
authors.lastname: Younes