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44913 08 p381-425 · 2010. 11. 8. · Problem 8.21 3.5 3.0 2.5 2.0 1.5 1.0 ppm 200 180 160 140 120 100 80 60 40 ppm 13C/DEPT 1H NMR MASS IR % of Base Peak m/z 150 50 100 187 159 50
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