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system
Provide the molecular formula for the IUPAC named substance (3aR)-3a-[(E)-2-[4-[(3-chlorophenyl)methoxy]-3-ethoxyphenyl]ethenyl]-4,4,6-trimethyl-1,3-dihydroimidazo[1,2-a]indol-2-one .
user
C30H31ClN2O3
assistant