You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,1-dioxothiolan-3-yl)-2-[(2-methyl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-yl)sulfanyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H21N3O3S3
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