You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-5-[[5-(3,4-dichlorophenyl)furan-2-yl]methylidene]-2-(4-hexoxyphenyl)-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H23Cl2N3O3S
assistant