You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[3-cyano-4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl]-2-thiophen-3-ylacetamide by IUPAC nomenclature, provide its molecular formula.
user
C19H23N3O3S
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