You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-(4-methoxy-7-phenyl-1,3-benzothiazol-2-yl)-4-(piperazin-1-ylmethyl)benzamide;dihydrochloride into molecular formula.
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C26H28Cl2N4O2S
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