title: 7-(1,3-Dioxolan-2-ylmeth-yl)-1,3-di-methyl-purine-2,6(1H,3H)-dione trichloro-acetic acid solvate.
abstract: In the title compound, C(11)H(14)N(4)O(4)·C(2)HCl(3)O(2), the dioxolane ring adopts an envelope conformation. Doxophylline [7-(1,3-dioxolan-2-yl-meth-yl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione] and trichloro-acetic acid mol-ecules are linked by O-H⋯N and C-H⋯O hydrogen bonds.
authors.forename: Xiang-Xiang
authors.initials: XX
authors.lastname: Wu
authors.forename: Zhan
authors.initials: Z
authors.lastname: Shu
authors.forename: Lin-Lin
authors.initials: LL
authors.lastname: Ma
authors.forename: Zhe-Wu
authors.initials: ZW
authors.lastname: Ding
authors.forename: Zhi-Min
authors.initials: ZM
authors.lastname: Jin