title: 2-[4-(2-Hy-droxy-eth-oxy)phenyl]-4,4,5,5-tetra-methyl-2-imidazoline-1-oxyl 3-oxide.
abstract: In the title compound, C(15)H(21)N(2)O(4), the imidazoline ring displays a twisted conformation. The dihedral angle between the mean plane of the imidazoline ring and the benzene ring is 33.50 (12)°. In the crystal, mol-ecules are connected by O-H⋯O hydrogen bonds, forming a zigzag chain along the c axis. The chains are linked by C-H⋯O and C-H⋯π inter-actions.
authors.affiliation: Department of Pharmacy, Lanzhou General Hospital of PLA, Key Laboratory of the Prevention and Cure of Plateau Environmental Damage, PLA 730050, Lanzhou Gansu,  People's Republic of China.
authors.forename: Lin-Lin
authors.initials: LL
authors.lastname: Jing
authors.forename: Hui-Ping
authors.initials: HP
authors.lastname: Ma
authors.forename: Xiao-Fei
authors.initials: XF
authors.lastname: Fan
authors.forename: Lei
authors.initials: L
authors.lastname: He
authors.forename: Zheng-Ping
authors.initials: ZP
authors.lastname: Jia