You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-([1,2,4]triazolo[1,5-b]pyridazin-6-yloxy)propyl 4-benzhydrylpiperazine-2-carboxylate into molecular formula.
user
C26H28N6O3
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