You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-amino-6-(4-hydroxy-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]pyrrol-2-yl)pyridine-3-carbonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H16N4O
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