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MassMS-IW-8674 2,3-dihydro-7-benzofurancarboxylic acid C9H8O3 (Mass of molecular ion: 164)
Source Temperature: 160 °C Sample Temperature: 140 °C Direct, 75 eV
18.0 1.0 28.0 1.4 39.0 4.3 45.0 2.1 45.5 1.2 50.0 1.3 51.0 2.7 52.0 1.0 53.0 1.5 59.0 3.1 62.0 2.0 63.0 4.8 64.0 1.4 65.0 7.1 66.0 1.3 73.5 1.8 77.0 2.2 78.0 1.4 79.0 1.0 89.0 7.3 90.0 12.0 91.0 17.6 92.0 2.1 102.0 1.0 105.0 2.0 106.0 7.1 107.0 1.0 117.0 1.4 118.0 42.6 119.0 17.2 120.0 3.8 133.0 2.9 134.0 5.7 135.0 1.7 145.0 3.3 146.0 1.6 147.0 16.5 148.0 1.7 163.0 2.6 164.0 100.0 165.0 10.1 166.0 1.4
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C9 H8 O3 0.040 g : 0.5 ml DMSO-d6 2,3-dihydro-7-benzofurancarboxylic acid 
Assign. Shift(ppm)
A 12.6 B 7.591 C 7.425 D 6.880 E 4.604 F 3.193
Hz ppm Int.5050.64 12.638 118 3038.37 7.603 307 3037.52 7.601 307 3030.47 7.583 332 3029.61 7.581 325 2971.92 7.437 316 2970.64 7.434 303 2964.65 7.419 345 2963.58 7.416 319 2757.38 6.900 372 2749.90 6.881 523 2746.27 6.872 34 2744.99 6.869 31 2742.21 6.862 343 1849.22 4.628 499 1840.46 4.606 1000 1831.70 4.584 535 1285.10 3.216 339 1276.33 3.194 633 1267.57 3.172 325
in DMSO-d6
KBr disc
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