You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[5-[2-[4-(dimethylamino)anilino]-2-oxoethyl]sulfanyl-2-oxo-3H-imidazo[1,2-c]quinazolin-3-yl]-N-[(2-methoxyphenyl)methyl]propanamide into molecular formula.
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C31H32N6O4S
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