You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-1-(4-amino-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]pyrrol-2-yl)-3-methylpentan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H25N3O
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