You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(5-benzylsulfanyl-1,3,4-thiadiazol-2-yl)sulfanyl]-N-[(E)-1-(4-nitrophenyl)ethylideneamino]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H17N5O3S3
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