You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-chloro-5-[(4E)-3-methyl-4-[(5-methylthiophen-2-yl)methylidene]-5-oxopyrazol-1-yl]benzoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H13ClN2O3S
assistant