You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2,5-dichloro-N-(1-morpholin-4-yl-1-oxopropan-2-yl)pyridine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C13H15Cl2N3O3
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