You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[[4-(2-amino-2-oxoethyl)-1,3-thiazol-2-yl]amino]-3-oxopropyl]naphthalene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H18N4O3S
assistant