You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-amino-N-(1,1-dioxothiolan-3-yl)-1-ethyl-N-prop-2-ynylpyrazole-3-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H18N4O3S
assistant