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1634-82-8More Spectrum > 2-(4-Hydroxyphenylazo)benzoic acid(1634-82-8)MS
2-(4-Hydroxyphenylazo)benzoic acid
Product Name 2-(4-Hydroxyphenylazo)benzoic acid
CAS1634-82-8
MFC13H10N2O3
MW242.23
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MassMS-NW-0647 o-(p-hydroxyphenylazo)benzoic acid C13H10N2O3 (Mass of molecular ion: 242)
Source Temperature: 210 °C Sample Temperature: 140 °C Direct, 75 eV
18.0 3.3 26.0 1.0 27.0 2.1 28.0 2.3 37.0 1.1 38.0 3.0 39.0 25.5 40.0 1.2 44.0 1.6 50.0 4.3 51.0 6.4 52.0 5.9 53.0 4.1 55.0 1.0 62.0 1.6 63.0 5.9 64.0 5.9 65.0 51.5 66.0 3.4 74.0 1.0 75.0 1.6 76.0 3.6 77.0 6.0 78.0 1.2 79.0 1.1 80.0 1.1 91.0 1.1 92.0 3.5 93.0 100.0 94.0 7.3 104.0 1.6 105.0 1.5 109.0 1.3 115.0 2.7 119.0 2.1 121.0 80.0 122.0 6.0 137.0 1.2 139.0 2.8 140.0 1.5 141.0 4.1 149.0 1.1 168.0 2.6 169.0 2.1 181.0 2.2 197.0 7.3 198.0 4.7 226.0 2.3 242.0 30.3 243.0 4.6
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C13 H10 N2 O3 0.026 g : 0.5 ml DMSO-d6 o-(p-hydroxyphenylazo)benzoic acid 
Assign. Shift(ppm)
A 7.79 B 7.77 C 7.637 D 7.56 E 7.54 F 6.982
Hz ppm Int.3120.00 7.807 82 3117.01 7.800 747 3114.87 7.794 236 3109.96 7.782 408 3109.53 7.781 393 3108.03 7.777 1000 3105.04 7.770 118 3102.05 7.762 269 3100.77 7.759 289 3062.09 7.662 94 3060.60 7.659 99 3055.04 7.645 153 3053.55 7.641 212 3052.48 7.638 191 3049.49 7.631 30 3046.92 7.624 222 3045.43 7.621 209 3025.55 7.571 387 3021.49 7.561 250 3020.21 7.558 172 3018.50 7.553 229 3017.43 7.551 219 3014.23 7.543 278 3012.95 7.539 238 3006.96 7.524 135 3005.47 7.521 117 2798.19 7.002 84 2795.20 6.995 770 2793.06 6.989 239 2788.36 6.978 228 2786.23 6.972 751 2783.24 6.965 89
KBr disc
nujol mull
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