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system
Provide the molecular formula for the IUPAC named substance 2-N-[(4-chloro-1H-benzimidazol-5-yl)methyl]-2-N-methyl-4-N-[5-(oxetan-3-yl)-1H-pyrazol-3-yl]pyrimidine-2,4-diamine .
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C19H19ClN8O
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