title: 16-Isopropyl-5,9-dimethyltetra-cyclo-[10.2.2.0.0]hexa-dec-15-ene-5,14-dicarboxylic acid ethanol hemisolvate.
abstract: In the title compound, C(23)H(34)O(4)·0.5C(2)H(6)O, which was isolated from acrylic modified rosin, the endocyclic compound adopts a tetra-cyclo-[10.2.2.01,10.04,9]hexa-decane structure. In the crystal, the components are linked by O-H⋯O and C-H⋯ hydrogen bonds.
authors.affiliation: Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, People's Republic of China.
authors.forename: Hong-Xiao
authors.initials: HX
authors.lastname: Wang
authors.forename: Shi-Bin
authors.initials: SB
authors.lastname: Shang
authors.forename: Yan-Bai
authors.initials: YB
authors.lastname: Yin
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Rao
authors.forename: Xu
authors.initials: X
authors.lastname: Xu