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system
Provide the molecular formula for the IUPAC named substance [3-[5-[(2-chloro-3,6-difluorophenyl)methyl]-6,7,8,9-tetrahydropyrazino[2,3-b][1,4]diazepin-3-yl]phenyl]-[4-(2-hydroxyethyl)piperazin-1-yl]methanone .
user
C27H29ClF2N6O2
assistant