You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (NZ)-N-[(4-cyclopentylpiperazin-1-yl)-[6-(2,5-dichlorophenoxy)pyridin-3-yl]methylidene]hydroxylamine .
user
C21H24Cl2N4O2
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