You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3Z)-1-(2,4-dimethylphenyl)-3-[[(4,6-dimethylpyrimidin-2-yl)amino]-(quinolin-3-ylamino)methylidene]thiourea is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H25N7S
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