You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
acetyl 2-(4-chlorophenyl)acetate;8-butan-2-yl-2-[(4-chlorophenyl)methyl]-3-hydroxyquinoline-4-carboxylic acid;7-butan-2-yl-2-hydroxyindol-1-ium-3-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C43H43Cl2N2O8+
assistant