You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule N-[(3-chlorophenyl)methyl]-8-methyl-2,3,3a,4,5,8b-hexahydro-1H-furo[2,3-g]indazole-7-carboxamide ?
user
C18H20ClN3O2
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