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system
Provide the molecular formula for the IUPAC named substance 2-(1-ethylpyrazol-4-yl)-N-[(1R)-1-hydroxy-2-(3-hydroxy-3-methylazetidin-1-yl)-2-oxoethyl]-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide .
user
C18H21N7O4
assistant