You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 1-[(Z)-4-amino-2-fluorobut-2-enyl]-3-(3-chlorophenyl)-2-methylindole-5-carboxylate;hydrochloride into its molecular formula.
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C22H23Cl2FN2O2
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