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What is the molecular formula of the compound with this IUPAC name 1-[(3,4-dichlorophenyl)methyl]-1,3-dimethyl-3-[2-(5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)ethyl]urea;hydrochloride ?
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C20H25Cl3N4O
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