You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2,4-dimethylanilino)-[(6-methoxy-1,1,4,4-tetramethyl-3H-isochromen-7-yl)amino]methylidene]tungsten is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H30N2O2W
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