You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2E)-2-(4,5-dibromo-1,2,6,7-tetrahydrocyclopenta[e][1]benzofuran-8-ylidene)ethyl]azanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H14Br2NO+
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