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system
Name the molecular formula for the molecule established as 1-[(6aR,9R,10aR)-9-(hydroxymethyl)-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinolin-7-yl]propan-1-one using the IUPAC nomenclature.
user
C18H22N2O2
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