You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[2-amino-3-cyano-4-(3-ethoxy-4-methoxyphenyl)-5,6,7,8-tetrahydro-4H-quinolin-1-yl]benzenesulfonamide into molecular formula.
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C25H28N4O4S
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