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 4-[(1E,6E)-7-(4-carboxyphenyl)-3,5-dioxo-4-[phenyl-(prop-1-en-2-ylamino)methyl]hepta-1,6-dienyl]benzoic acid .
user
C31H27NO6
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