title: 2-[(Meth-oxy-carbonothio-yl)sulfan-yl]acetic acid.
abstract: The title compound, C(4)H(6)O(3)S(2), features a characteristic xanthate group; the C=S double bond is shorter than the C-S single bond, and the methyl group is coplanar with the xanthate group. In the crystal pairs of mol-ecules form dimers through inter-molecular O-H⋯O hydrogen bonding.
authors.affiliation: Dept. of Chemical and Biochemical Engineering, Faculty of Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9.
authors.forename: Shude
authors.initials: S
authors.lastname: Xiao
authors.forename: Paul A
authors.initials: PA
authors.lastname: Charpentier