title: Tetra-ethyl-ammonium 2-[bis-(4-hy-droxy-phen-yl)meth-yl]benzoate.
abstract: In the title compound, C(8)H(20)N(+)·C(20)H(15)O(4) (-), the benzoate anions are connected by multiple inter-molecular O-H⋯O hydrogen bonds, forming columns propagating along [1[Formula: see text]0]. The hydrogen bonding can be described by two rings with R(2) (2)(22) and R(4) (2)(28) motifs. In the crystal, the tetra-ethyl-ammonium cations are situated between these columns and are linked to them via C-H⋯O inter-actions.
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Li
authors.forename: Yan
authors.initials: Y
authors.lastname: Tong
authors.forename: Ching Kheng
authors.initials: CK
authors.lastname: Quah