You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-(3-aminocyclobutyl)-2-cyclopropyl-N-[(2-pyrazol-1-ylphenyl)methyl]pyrimidin-4-amine;dihydrochloride .
user
C21H26Cl2N6
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