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What is the molecular formula of the compound with this IUPAC name 1-tert-butyl-4-ethenylbenzene;1-(2,2-dimethylpropoxymethyl)-4-ethenylbenzene;1-ethenyl-4-[(2-methylpropan-2-yl)oxymethoxymethyl]benzene ?
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C40H56O3
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