You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2,5-dichlorophenyl)-5-[(5-methyl-1,2-oxazol-3-yl)amino]pyrazine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H11Cl2N5O2
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