2-METHYL-4(3H)-QUINAZOLINONE(1769-24-0) 1H NMR
Product Name2-METHYL-4(3H)-QUINAZOLINONE
CAS1769-24-0
Molecular FormulaC9H8N2O
Molecular Weight160.17
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MassMS2018-05481CM 2-methyl-4(3H)-quinazolinone C9H8N2O (Mass of molecular ion: 160)
Source Temperature: 235 °C Sample Temperature: 20 °C Direct, 70 eV
15.0 1.8 17.0 6.8 18.0 32.0 28.0 2.9 37.0 1.7 38.0 2.9 39.0 5.6 40.0 1.3 41.0 2.7 42.0 15.5 43.0 2.1 50.0 8.1 51.0 3.0 52.0 2.0 61.0 1.2 62.0 2.9 63.0 9.9 64.0 9.4 65.0 2.2 66.0 4.0 74.0 3.1 75.0 3.6 76.0 8.3 77.0 6.1 80.0 2.2 89.0 1.4 90.0 18.0 91.0 6.6 92.0 17.5 93.0 1.3 102.0 2.4 104.0 1.3 105.0 1.4 116.0 1.1 117.0 10.1 118.0 17.6 119.0 18.2 120.0 11.1 131.0 7.6 132.0 7.2 133.0 1.2 143.0 5.3 145.0 12.5 146.0 1.2 159.0 7.9 160.0 100.0 161.0 10.3
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C9 H8 N2 O 0.038 g : 0.5 ml DMSO-d6 2-methyl-4(3H)-quinazolinone 
Assign. Shift(ppm)
A 12.2 B 8.105 C 7.783 D 7.595 E 7.470 F 2.379
Hz ppm Int.3244.25 8.118 81 3243.88 8.117 83 3242.78 8.115 93 3242.23 8.113 80 3236.37 8.099 89 3236.00 8.098 91 3234.90 8.095 94 3234.35 8.093 85 3119.69 7.807 56 3118.04 7.802 55 3112.55 7.789 72 3111.45 7.786 92 3109.98 7.782 75 3104.31 7.768 75 3102.84 7.764 75 3039.46 7.606 109 3038.92 7.604 113 3031.41 7.586 91 3030.86 7.584 89 2993.31 7.490 65 2992.21 7.488 65 2986.16 7.472 75 2985.25 7.470 104 2984.33 7.468 75 2978.29 7.453 58 2977.19 7.450 55 951.18 2.381 1000
in DMSO-d6
KBr disc
nujol mull
