You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(4-methyl-3-morpholin-4-ylsulfonylphenyl)-2-[(5-thiophen-2-yl-1H-1,2,4-triazol-3-yl)sulfanyl]acetamide is given. What is its corresponding molecular formula?
user
C19H21N5O4S3
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