title: 2-[3-Hy-droxy-4-(2-hy-droxy-eth-oxy)phen-yl]-4,4,5,5-tetra-methyl-2-imidazoline-1-oxyl 3-oxide.
abstract: In the title compound, C(15)H(21)N(2)O(5), the imidazoline ring displays a twisted conformation. The mean plane of the imidazoline ring makes a dihedral angle of 22.55 (5)° with the benzene ring. In the crystal, O-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into a layer parallel to the bc plane.
authors.affiliation: Department of Pharmacy, Lanzhou General Hospital of PLA, Key Laboratory of the Prevention and Cure for the Plateau Environment Damage, PLA 730050, Lanzhou Gansu,  People's Republic of China.
authors.forename: Hui-Ping
authors.initials: HP
authors.lastname: Ma
authors.forename: Lin-Lin
authors.initials: LL
authors.lastname: Jing
authors.forename: Lei
authors.initials: L
authors.lastname: He
authors.forename: Peng-Cheng
authors.initials: PC
authors.lastname: Fan
authors.forename: Zheng-Ping
authors.initials: ZP
authors.lastname: Jia