You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[4-[2-[(6-methoxy-1,3-benzothiazol-2-yl)amino]-2-oxoethyl]sulfanylphenyl]carbamoyl]benzene-1,3-dicarboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H19N3O7S2
assistant