You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-2-cyano-3-[2,5-dimethyl-1-[4-(4-nitrophenyl)sulfanylphenyl]pyrrol-3-yl]-N-(thiophen-2-ylmethyl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H22N4O3S2
assistant