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system
Provide the molecular formula for the IUPAC named substance (7S)-5-[3-chloro-4-(trifluoromethyl)phenyl]-7-methyl-4-oxo-N-pyrazin-2-yl-6,7-dihydropyrazolo[1,5-a]pyrazine-3-carboxamide;methane;sulfane .
user
C20H20ClF3N6O2S
assistant