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MassMS-NW-7890 nicotinamide 1-oxide C6H6N2O2 (Mass of molecular ion: 138)
Source Temperature: 210 °C Sample Temperature: 200 °C Direct, 75 eV
18.0 2.8 26.0 1.6 27.0 1.5 28.0 4.4 29.0 1.1 30.0 1.5 37.0 2.4 38.0 7.5 39.0 26.8 40.0 4.3 41.0 2.8 42.0 1.6 44.0 16.5 49.0 1.5 50.0 6.8 51.0 11.1 52.0 5.0 53.0 12.3 54.0 2.6 55.0 1.4 61.0 1.7 62.0 3.3 63.0 10.9 64.0 4.0 65.0 3.1 66.0 12.6 67.0 3.3 68.0 2.1 69.0 1.9 70.0 1.3 75.0 1.1 76.0 2.0 77.0 4.2 78.0 13.1 79.0 1.8 80.0 1.6 92.0 1.1 93.0 3.0 94.0 10.0 95.0 4.1 104.0 3.2 105.0 2.2 106.0 5.0 108.0 4.7 120.0 2.0 121.0 1.9 122.0 14.6 123.0 2.8 138.0 100.0 139.0 8.5
400 MHz in D2O
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1H NMR 399.65 MHz C6 H6 N2 O2 saturated in D2O nicotinamide 1-oxide 
Assign. Shift(ppm)
A 8.751 B 8.498 C 8.125 D 7.751 SOLVENT SIGNAL REMOVED
Hz ppm Int.3498.90 8.755 594 3497.56 8.752 1000 3495.97 8.748 615 3401.00 8.510 433 3400.02 8.508 497 3399.17 8.506 472 3398.19 8.503 418 3394.41 8.494 451 3393.43 8.492 501 3392.58 8.489 484 3391.72 8.487 414 3252.32 8.138 402 3251.22 8.136 507 3249.88 8.132 398 3247.31 8.126 68 3246.95 8.125 70 3244.26 8.118 451 3243.16 8.116 557 3241.70 8.112 424 3104.98 7.770 468 3098.02 7.752 505 3096.92 7.750 491 3090.33 7.733 404
in D2O
KBr disc
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