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system
Provide the molecular formula for the IUPAC named substance 1-[3a-(3,4-dimethoxyphenyl)-1-methyl-3,4,5,6,7,7a-hexahydro-2H-indol-6-yl]-3-(4,6-dimethylpyridin-2-yl)urea .
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C25H34N4O3
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