You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 1-[[5-(dichloromethylidene)-2-oxoimidazolidin-4-ylidene]amino]sulfonylpiperidine-4-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H16Cl2N4O5S
assistant