You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-2-(4-butoxyphenyl)-5-(thiophen-2-ylmethylidene)-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H17N3O2S2
assistant