You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-N-(2,5-dimethoxyphenyl)-4-N-(5-methyl-1,2-oxazol-3-yl)pyrimidine-4,5,6-triamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H18N6O3
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