title: (1R,1'S)-1,1'-Dihydr-oxy-1,1'-biisobenzofuran-3,3'(1H,1'H)-dione.
abstract: In the title compound, C(16)H(10)O(6), the complete mol-ecule is generated by a crystallographic centre of symmetry. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into (100) sheets and C-H⋯O links also occur.
authors.forename: Fang-Fang
authors.initials: FF
authors.lastname: Jian
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Zhao
authors.forename: Huan-Mei
authors.initials: HM
authors.lastname: Guo
authors.forename: Yu-Feng
authors.initials: YF
authors.lastname: Li
authors.forename: Pu-Su
authors.initials: PS
authors.lastname: Zhao