You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [4-[5-[[5-chloro-2-(2,2,2-trifluoroethyl)phenyl]methyl]-2,6,7,8-tetrahydro-1H-pyrazino[2,3-c]pyridazin-3-yl]phenyl]-morpholin-4-ylmethanone .
user
C26H27ClF3N5O2
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