title: 2'-Amino-3,6-dihydroxyxanthene-9-spiro-1'-isoindolin-3'-one monohydrate.
abstract: The title compound, C(20)H(14)N(2)O(4)·H(2)O, was synthesized by the reaction of fluorescein and hydrazine hydrate in ethanol. In the crystal structure, the organic mol-ecules are linked into extended two-dimensional networks by inter-molecular hydrogen bonding. Additional face-to-face π-π stacking inter-actions between the phenolic benzene rings in two adjacent mol-ecules [centroid-to-centroid separation = 3.773 (3) Å] link the mol-ecules into a three-dimensional framework.
authors.forename: Dong-Xiang
authors.initials: DX
authors.lastname: Wang
authors.forename: Gen-Hua
authors.initials: GH
authors.lastname: Wu