You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[methyl-[2-(4-methylanilino)-2-oxoethyl]amino]-2-oxoethyl] (3R)-3-methylpiperidine-1-carbodithioate by IUPAC nomenclature, provide its molecular formula.
user
C19H27N3O2S2
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