You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[(E)-3-(6-chloro-3,4-dihydro-2H-1,5-benzodioxepin-8-yl)prop-2-enoyl]thiophene-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H12ClO5S-
assistant