You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(3,4-dimethoxyphenyl)ethyl]-3-(2-methoxyphenyl)-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28N4O3
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