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Under IUPAC nomenclature, a molecule named 2-chloro-N-[(1E,3Z)-1-(methylideneamino)penta-1,3-dien-2-yl]-5-[[4-methyl-6-(methylamino)pyrimidin-2-yl]amino]benzamide is given. What is its corresponding molecular formula?
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C19H21ClN6O
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