You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 7,9-dichloro-2-(4-chlorophenyl)-5-(4-fluorophenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine ?
user
C22H14Cl3FN2O
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