You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(5-methyl-2-propan-2-ylpyrazol-3-yl)-4-[(4-nitrophenoxy)methyl]thiophene-2-carboxamide is given. What is its corresponding molecular formula?
user
C19H20N4O4S
assistant