You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-(1-methylindol-5-yl)-2-(1,2,4,5-tetrahydro-3-benzazepin-3-yl)-1,3-benzoxazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H23N3O
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