You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-amino-2-[4-(2-morpholin-4-ylethoxy)anilino]-1,3-thiazol-5-yl]-(3-fluorophenyl)methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H23FN4O3S
assistant