You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-2-[2-(cyclopropylsulfanylamino)-1,3-thiazol-4-yl]-N-[4-(6-ethoxy-1,2-dihydropyrazin-2-yl)phenyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H24N6O2S2
assistant