You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[[4-[(4-amino-2-imino-5H-1,3-thiazol-5-yl)methyl]phenoxy]methyl]-2-ethyl-7,8-dimethoxy-5-methyl-3,4-dihydrochromen-6-yl] acetate by IUPAC nomenclature, provide its molecular formula.
user
C27H33N3O6S
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