You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-ethylsulfonyl-5-N-methyl-5-N-[(2-methyl-1,3-thiazol-4-yl)methyl]-1,2-thiazole-3,5-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H16N4O2S3
assistant