title: 5-[(Z)-2,3-Dimeth-oxy-benzyl-idene]-1,2,4-triazolo[3,2-b][1,3]thia-zol-6(5H)-one.
abstract: The title compound, C(13)H(11)N(3)O(3)S, was synthesized from 1H-1,2,4-triazole-5-thiol in a one pot reaction. The fused thia-zolo[3,2-b][1,2,4]triazole system is essentially coplanar with the benzene ring: they enclose an inter-planar angle of 1.37 (13)°. The olefinic double bond is in a Z conformation. In the crystal, C-H⋯N hydrogen bonds link the mol-ecules into double layers parallel to the ab plane.
authors.affiliation: Wenzhou Medical College, School of Pharmacy, Wenzhou 325035,  People's Republic of China.
authors.forename: Lu
authors.initials: L
authors.lastname: Guo
authors.forename: Gao-Tong
authors.initials: GT
authors.lastname: Lin
authors.forename: Jia
authors.initials: J
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Ni
authors.forename: Ren-Shan
authors.initials: RS
authors.lastname: Ge