You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(methylamino)-N-[2-[2-(4-methylphenyl)-1,3-oxazol-4-yl]ethyl]acetamide;hydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C15H20ClN3O2
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