You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-ethylhexyl 3-(4-chlorophenyl)-1,4,6,7-tetrahydropyrazolo[4,3-c]pyridine-5-carboxylate .
user
C21H28ClN3O2
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