You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 6-methoxy-5-methyl-1-[1-(3,4,5-trimethoxyphenyl)ethenyl]-1H-[1,2,4]triazolo[1,2-a]pyridazine into molecular formula.
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C19H23N3O4
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