You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-[[2-(2,6-diaminohexanoylamino)-3-methylbutanoyl]amino]-3-methylpentanoyl]amino]-4-methylpentanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H45N5O5
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