2-ALLYL-2-METHYL-1,3-CYCLOPENTANEDIONE(26828-48-8) Raman
Product Name2-ALLYL-2-METHYL-1,3-CYCLOPENTANEDIONE
CAS26828-48-8
Molecular FormulaC9H12O2
Molecular Weight152.19
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MassMS-NW-7465 2-allyl-2-methyl-1,3-cyclopentanedione C9H12O2 (Mass of molecular ion: 152)
Source Temperature: 260 °C Sample Temperature: 160 °C Reservoir, 75 eV
14.0 1.0 15.0 4.1 18.0 3.7 26.0 11.6 27.0 54.8 28.0 65.4 29.0 9.8 31.0 1.4 32.0 1.4 37.0 2.1 38.0 6.5 39.0 64.2 40.0 19.9 41.0 100.0 42.0 10.8 43.0 22.1 44.0 1.8 50.0 4.0 51.0 7.2 52.0 4.4 53.0 32.0 54.0 7.5 55.0 43.5 56.0 61.3 57.0 7.3 61.0 1.2 62.0 1.8 63.0 3.3 65.0 9.5 66.0 7.1 67.0 79.5 68.0 69.7 69.0 33.9 70.0 3.1 74.0 1.5 77.0 6.2 78.0 1.9 79.0 13.1 80.0 4.2 81.0 25.3 82.0 8.2 83.0 9.5 84.0 4.1 85.0 2.7 91.0 9.0 92.0 7.2 93.0 14.1 94.0 3.4 95.0 59.4 96.0 20.9 97.0 65.2 98.0 7.5 105.0 2.2 106.0 1.5 107.0 3.6 108.0 4.5 109.0 91.4 110.0 40.9 111.0 7.9 112.0 2.3 115.0 1.0 119.0 1.9 123.0 10.1 124.0 42.6 125.0 12.3 126.0 1.1 134.0 1.0 137.0 14.1 138.0 1.4 151.0 1.4 152.0 36.8 153.0 4.0 192.0 1.2
400 MHz in CDCl3
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1H NMR 399.65 MHz C9 H12 O2 0.05 ml : 0.5 ml CDCl3 2-allyl-2-methyl-1,3-cyclopentanedione 
Assign. Shift(ppm)
A 5.597 B 5.08 C 5.07 D *1 2.774 E *1 2.717 F 2.349 G 1.116
Hz ppm Int.2258.79 5.652 30 2251.34 5.634 66 2248.29 5.626 34 2243.90 5.615 40 2242.19 5.611 39 2240.72 5.607 68 2234.86 5.593 65 2233.15 5.588 39 2231.93 5.585 49 2227.54 5.574 32 2224.24 5.566 82 2216.80 5.547 40 2034.55 5.091 210 2033.45 5.089 227 2032.35 5.086 112 2025.51 5.069 84 2024.66 5.067 92 2023.68 5.064 110 2018.19 5.050 48 2016.85 5.047 101 2015.38 5.043 88 2013.79 5.039 45 1129.52 2.827 50 1121.83 2.808 78 1119.26 2.801 145 1106.81 2.770 247 1103.64 2.762 215 1100.46 2.754 223 1094.12 2.738 222 1091.06 2.731 221 1088.01 2.723 260 1075.56 2.692 145 1072.75 2.685 78 1065.19 2.666 50 943.60 2.362 153 942.63 2.359 242 941.53 2.356 175 936.04 2.343 155 935.18 2.340 224 934.08 2.338 182 446.29 1.117 1000
in CDCl3
liquid film
