p-(1-naphthylazo)benzoic acid
Product Name p-(1-naphthylazo)benzoic acid
CAS80468-93-5
MFC17H12N2O2
MW276.29
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MassMS-IW-5917 p-(1-naphthylazo)benzoic acid C17H12N2O2 (Mass of molecular ion: 276)
Source Temperature: 170 °C Sample Temperature: 170 °C Direct, 75 eV
18.0 2.6 28.0 1.3 39.0 1.5 50.0 1.0 51.0 2.1 65.0 5.5 75.0 2.3 76.0 2.4 77.0 5.1 101.0 2.9 104.0 3.5 115.0 1.0 121.0 12.6 122.0 1.0 126.0 5.1 127.0 100.0 128.0 12.7 138.0 1.4 143.0 2.6 149.0 1.4 155.0 5.9 202.0 3.8 203.0 2.1 231.0 2.1 232.0 1.1 258.0 1.0 275.0 3.8 276.0 67.0 277.0 13.0 278.0 1.8
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C17 H12 N2 O2 0.033 g : 0.5 ml DMSO-d6 p-(1-naphthylazo)benzoic acid 
Assign. Shift(ppm)
A 8.892 B 8.22 C 8.19 D 8.11 E 8.09 F 7.847 G 7.752 J 7.69
Hz ppm Int.3558.20 8.904 272 3549.96 8.883 279 3288.12 8.228 566 3279.42 8.206 1000 3269.96 8.183 352 3260.80 8.160 32 3259.89 8.157 31 3259.43 8.156 30 3259.12 8.155 30 3256.99 8.150 33 3246.61 8.124 851 3237.92 8.102 718 3228.45 8.079 317 3140.87 7.860 283 3139.95 7.857 287 3137.05 7.850 57 3133.39 7.841 365 3132.48 7.839 344 3107.45 7.776 129 3106.23 7.773 135 3100.59 7.759 228 3099.21 7.755 274 3097.84 7.752 160 3092.19 7.738 221 3090.97 7.735 202 3079.53 7.706 492 3071.75 7.687 629 3065.49 7.671 184 3063.96 7.667 309
in DMSO-d6
KBr disc
nujol mull
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