You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 3-[[2-[5-(4-methylphenyl)-4-oxothieno[2,3-d]pyrimidin-3-yl]acetyl]amino]benzoate into its molecular formula.
user
C24H21N3O4S
assistant