You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
heptyl 3-ethoxy-4-[(1E)-2-methyl-1-(2,6,6-trimethylcyclohexen-1-yl)buta-1,3-dienyl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H44O3
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