Product Name2-Quinoxalinone
CAS1196-57-2
Molecular FormulaC8H6N2O
Molecular Weight146.15
InChIInChI=1S/C8H6N2O/c11-8-5-9-6-3-1-2-4-7(6)10-8/h1-5H,(H,10,11)
InChIKey FFRYUAVNPBUEIC-UHFFFAOYSA-N
SmilesN1C2=C(C=CC=C2)N=CC1=O

Mass
MS-NW-8283 2(1H)-quinoxalinone C8H6N2O (Mass of molecular ion: 146)
Source Temperature: 160 °C Sample Temperature: 120 °C Direct, 75 eV
17.0 3.0
18.0 14.4
26.0 1.1
27.0 1.7
28.0 5.4
37.0 5.5
38.0 9.0
39.0 10.1
40.0 2.4
41.0 4.8
44.0 1.7
45.0 3.1
50.0 8.3
51.0 5.0
52.0 9.0
59.0 6.3
61.0 3.0
62.0 6.6
63.0 22.7
64.0 24.3
65.0 5.9
74.0 2.3
75.0 2.8
76.0 5.2
77.0 1.2
78.0 1.7
88.0 1.3
89.0 1.2
90.0 13.8
91.0 46.3
92.0 4.6
117.0 4.3
118.0 100.0
119.0 9.0
145.0 1.0
146.0 87.2
147.0 8.6
400 MHz in DMSO-d6
90 MHz in DMSO-d6

| 1H NMR | 399.65 MHz |
| C8 H6 N2 O | 0.043 g : 0.5 ml DMSO-d6 |
| 2(1H)-quinoxalinone | |
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Assign. Shift(ppm) |
Hz ppm Int.
4982.68 12.468 121 3281.06 8.210 1000 3121.52 7.811 279 3120.24 7.808 335 3113.46 7.791 300 3112.37 7.788 353 3036.35 7.598 144 3034.89 7.594 171 3027.74 7.576 326 3026.83 7.574 273 3020.78 7.559 197 3019.50 7.556 222 2940.74 7.359 436 2936.34 7.348 287 2934.88 7.344 260 2933.41 7.340 333 2932.50 7.338 384 2929.02 7.329 304 2928.28 7.328 346 2927.00 7.324 288 2921.14 7.310 181 2919.86 7.307 179

| 1H NMR | 89.56 MHz |
| C8 H6 N2 O | 0.036 g : 0.5 ml DMSO-d6 |
| 2(1H)-quinoxalinone | |
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Assign. Shift(ppm) |
Hz ppm Int.
1114.60 12.446 86
739.05 8.253 40
734.18 8.198 1000
730.33 8.155 41
729.91 8.150 40
729.14 8.142 41
703.59 7.857 169
701.45 7.833 224
697.44 7.788 96
694.79 7.758 269
693.76 7.747 324
691.03 7.716 42
689.49 7.699 39
687.61 7.678 90
685.90 7.659 91
684.19 7.640 40
682.57 7.622 65
679.49 7.587 180
677.61 7.566 210
675.82 7.547 53
672.57 7.510 308
670.95 7.492 248
668.73 7.467 46
668.30 7.463 45
667.27 7.451 41
662.06 7.393 586
661.12 7.382 548
659.75 7.367 368
656.08 7.326 255
654.97 7.314 315
653.26 7.295 309
651.98 7.280 200
648.22 7.238 138
646.51 7.219 116
in DMSO-d6

KBr disc

nujol mull

2-Quinoxalinone(1196-57-2) 1H NMR Atlas of Related Products
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