title: 3',6'-Bis(diethyl-amino)-2-[(E)-2-(4-hy-droxy-3-meth-oxy-benzyl-idene-amino)-eth-yl]spiro-[isoindoline-1,9'-xanthen]-3-one ethanol monosolvate.
abstract: In the title compound, C(38)H(42)N(4)O(4)·C(2)H(6)O, prepared via a spiro-lactam ring-formation reaction in a rhodamine dye, the xanthene ring system is approximately planar (r.m.s. deviation = 0.0014Å) and subtends dihedral angles of 88.10 (3) and 86.92 (4)° with the spiro-lactam (r.m.s. deviations = 0.0012 Å) and benzene rings, respectively. The crystal structure consists of chains parallel to [-101], formed via O-H⋯O inter-actions.
authors.affiliation: Department of Basic Science, Tianjin Agriculturial University, Tianjin Jinjing Road No. 22, Tianjin 300384,  People's Republic of China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wei
authors.forename: Jinlong
authors.initials: J
authors.lastname: Guo
authors.forename: Xujun
authors.initials: X
authors.lastname: Zheng
authors.forename: Shunwei
authors.initials: S
authors.lastname: Chen
authors.forename: Qun
authors.initials: Q
authors.lastname: Wan