You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2S)-2-[3-(6-pentoxynaphthalen-2-yl)-1,2,4-oxadiazol-5-yl]pyrrolidin-1-ium-1-ylidene]methanediamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H28N5O2+
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