You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[(Z)-2-(3-chloropyridin-4-yl)-4-[4-[(E)-2-(2H-tetrazol-5-yl)ethenyl]phenyl]but-1-enyl]-1,3-benzothiazole by IUPAC nomenclature, provide its molecular formula.
user
C25H19ClN6S
assistant