You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[2-(dimethylamino)ethyl-methylamino]-5-[[4-[2-(methanesulfonamido)anilino]pyrimidin-2-yl]amino]-4-methoxyphenyl]prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34N8O4S
assistant