You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[4-[[5-[2-(2,5-difluoroanilino)-2-oxoethyl]-1,3-thiazol-2-yl]amino]-6-methoxyquinazolin-7-yl]oxypropyl-ethylamino]ethyl dihydrogen phosphate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H31F2N6O7PS
assistant