You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-amino-4-(1,3-benzothiazol-2-yl)-5-(methylamino)thiophen-2-yl]-thiophen-2-ylmethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H13N3OS3
assistant