You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[3-[(2,6-dichlorophenyl)methyl]-1,2,4-oxadiazol-5-yl]-1,2,5-oxadiazol-3-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H7Cl2N5O2
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