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 2-[(2-chloro-6-fluorophenyl)methylsulfanyl]-4-(3,4-dimethoxyphenyl)-3-(4-fluorophenyl)-7-methylidene-4H-pyrano[3,4-d]imidazole .
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C28H23ClF2N2O3S
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