title: Ethyl 1-sec-butyl-2-phenyl-1H-benzimidazole-5-carboxyl-ate.
abstract: In the title mol-ecule, C(20)H(22)N(2)O(2), the benzimidazole ring system is essentially planar, with a maximum deviation of 0.024 (1) Å. The dihedral angle between the phenyl and benzimidazole ring system is 43.71 (5)°. The atoms of the butyl group are disordered over two sets of sites with occupancies of 0.900 (4) and 0.100 (4). In the crystal structure, mol-ecules are connected by weak inter-molecular C-H⋯O hydrogen bonds, forming chains along the b axis. The crystal structure is further stabilized by C-H⋯π inter-actions.
authors.forename: Natarajan
authors.initials: N
authors.lastname: Arumugam
authors.forename: Aisyah Saad
authors.initials: AS
authors.lastname: Abdul Rahim
authors.forename: Shafida
authors.initials: S
authors.lastname: Abd Hamid
authors.forename: Madhukar
authors.initials: M
authors.lastname: Hemamalini
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun