You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(2,4-dimethylphenyl)-N-[3-[ethyl(methylsulfonyl)amino]propyl]-4-methyl-1,3-thiazole-5-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C19H27N3O3S2
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