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MassMS-IW-9343 dimethyl 2,3-pyridinedicarboxylate C9H9NO4 (Mass of molecular ion: 195)
Source Temperature: 220 °C Sample Temperature: 150 °C Reservoir, 75 eV
15.0 19.7 18.0 1.9 26.0 6.1 27.0 2.9 28.0 9.1 29.0 3.9 30.0 1.1 37.0 1.3 38.0 4.4 38.5 1.0 39.0 11.9 42.0 5.3 45.0 1.8 49.0 2.8 50.0 22.0 51.0 18.1 52.0 4.9 52.5 2.7 53.0 12.3 54.0 1.1 59.0 10.9 64.0 2.1 65.0 10.1 66.0 4.1 67.0 2.2 75.0 3.3 76.0 12.3 77.0 23.6 78.0 92.0 79.0 100.0 80.0 17.2 81.0 1.2 91.0 1.6 92.0 10.0 93.0 14.8 94.0 1.4 104.0 1.7 105.0 9.9 106.0 30.3 107.0 91.1 108.0 9.5 120.0 1.9 135.0 1.0 136.0 88.3 137.0 69.1 138.0 5.9 150.0 1.6 164.0 74.8 165.0 56.9 166.0 5.5 195.0 2.7 196.0 1.9
400 MHz in CDCl3
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1H NMR 399.65 MHz C9 H9 N O4 0.041 g : 0.5 ml CDCl3 dimethyl 2,3-pyridinedicarboxylate 
Assign. Shift(ppm)
A 8.772 B 8.186 C 7.516 D 4.009 E 3.944
Hz ppm Int.3509.28 8.781 102 3507.57 8.777 102 3504.52 8.769 103 3502.81 8.765 102 3276.61 8.199 117 3274.90 8.195 113 3268.68 8.179 125 3266.97 8.175 117 3010.13 7.532 113 3005.25 7.520 116 3002.08 7.512 107 2997.31 7.500 109 1602.17 4.009 1000 1576.29 3.945 996
in CDCl3
KBr disk
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