You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule 3-[[1-(3-formylpyridin-2-yl)cyclopropyl]-methylcarbamoyl]-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazine-5-carboxylic acid ?
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C18H19N5O4
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