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 2-(pyrimidin-2-ylmethyl)-6-[4-(trifluoromethylamino)phenyl]-[1,2,4]triazolo[4,3-a]pyridin-3-one .
user
C18H13F3N6O
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