title: 2-(2-Furylmethyl-ammonio)ethane-sulfonate methanol solvate.
abstract: The organic mol-ecule of the title compound, C(7)H(11)NO(4)S·CH(3)OH, is a zwitterion and its furan ring displays positional disorder [occupancy 0.563 (5):0.437 (5)]. The crystal structure is extended into a three-dimensional supra-molecular architecture through inter-molecular O-H⋯O and N-H⋯O hydrogen bonds with participation of the methanol solvent mol-ecules.
authors.forename: Zhong-Xiang
authors.initials: ZX
authors.lastname: Du
authors.forename: Ling-Zhi
authors.initials: LZ
authors.lastname: Wang