You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(1S)-2-(hydroxyamino)-1-[(3S)-morpholin-3-yl]-2-oxoethyl]-4-[4-[2-(hydroxymethyl)cyclopropyl]buta-1,3-diynyl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C21H23N3O5
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