You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 1-[(E)-4-aminobut-2-enyl]-2-[(2-ethyl-5-methylpyrazole-3-carbonyl)amino]-7-(3-morpholin-4-ylpropoxy)benzimidazole-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H37N7O5
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