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system
Provide the molecular formula for the IUPAC named substance 8-amino-1-(2-hydroxyethyl)-4,4-dimethyl-N-(4-methyl-2,3-dihydro-1,3-thiazol-2-yl)-5H-pyrazolo[4,3-h]quinazoline-3-carboxamide .
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C18H23N7O2S
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