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 3-[6a,9a-dichloro-6-(2-hydroxyphenyl)-1,3,7,9-tetraoxo-8-(2,3,4,5,6-pentafluorophenyl)-3a,4,6,10,10a,10b-hexahydroisoindolo[5,6-e]isoindol-2-yl]benzoic acid .
user
C33H19Cl2F5N2O7
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