You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(1-cyclopentylpyrazol-3-yl)methyl]-3-ethyl-2-[[4-methyl-2-(oxolan-3-ylmethoxy)phenyl]methyl]guanidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H37N5O2
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