title: Bis(2-hy-droxy-ethanaminium) naphthalene-1,5-disulfonate.
abstract: In the crystal structure of the title compound, 2C(2)H(8)NO(+)·C(10)H(6)O(6)S(2) (2-), the anion lies on an inversion centre. The components are held together by O-H⋯O hydrogen bond, forming a 2:1 aggregate. The aggregates are further connected by N-H⋯O and C-H⋯O hydrogen bonds.
authors.affiliation: College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China.
authors.forename: Cong
authors.initials: C
authors.lastname: Wang
authors.forename: Sheng Li
authors.initials: SL
authors.lastname: Yang