You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl 3-[4-[[5-methoxy-6-(methoxymethyl)-1,2,3,3a-tetrahydroazulen-1-yl]oxy]phenyl]hex-4-ynoate into its molecular formula.
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C26H30O5
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