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MassMS-NW-7654 cyclopentanone oxime C5H9NO (Mass of molecular ion: 99)
Source Temperature: 260 °C Sample Temperature: 170 °C Reservoir, 75 eV
15.0 1.9 18.0 3.4 26.0 5.5 27.0 20.1 28.0 16.3 29.0 15.8 30.0 1.6 31.0 2.0 37.0 1.5 38.0 3.4 39.0 23.6 40.0 5.7 41.0 36.9 42.0 8.8 43.0 2.7 44.0 6.5 45.0 1.5 50.0 1.7 51.0 3.0 52.0 4.8 53.0 10.8 54.0 49.8 55.0 100.0 56.0 5.9 57.0 4.9 58.0 1.0 59.0 1.8 65.0 2.2 66.0 3.1 67.0 29.3 68.0 3.8 70.0 6.1 71.0 2.9 72.0 1.5 80.0 7.6 81.0 1.5 82.0 40.0 83.0 5.8 84.0 5.2 98.0 6.3 99.0 52.5 100.0 3.7
400 MHz in DMSO-d6
90 MHz in D2O
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1H NMR 399.65 MHz C5 H9 N O 0.040 g : 0.5 ml DMSO-d6 cyclopentanone oxime 
Assign. Shift(ppm)
A 10.18 B 2.25 C 2.23 D 1.66 E 1.64 ASSIGNED BY C-H COSY.
Hz ppm Int.4066.47 10.176 1000 908.97 2.275 145 907.90 2.272 128 906.37 2.268 97 900.88 2.255 297 898.59 2.249 186 897.52 2.246 180 896.15 2.243 279 895.39 2.241 286 893.71 2.237 196 892.49 2.234 201 891.11 2.230 292 890.05 2.228 325 888.98 2.225 282 885.62 2.216 85 884.09 2.213 145 883.03 2.210 155 675.96 1.692 36 672.30 1.683 149 668.03 1.672 141 666.50 1.668 186 664.67 1.664 311 663.60 1.661 332 661.62 1.656 275 660.71 1.654 351 659.18 1.650 357 657.35 1.645 234 656.13 1.642 340 655.06 1.640 328 653.23 1.635 175 647.74 1.621 141 645.29 1.615 37 643.77 1.611 30
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1H NMR 89.56 MHz C5 H9 N O 0.038 g : 0.5 ml D2O cyclopentanone oxime Assign. Shift(ppm)
A 2.40 B 1.765 SOLVENT PEAK REMOVED
Hz ppm Int.223.00 2.490 198 220.38 2.461 340 217.13 2.425 672 210.06 2.346 906 204.31 2.282 359 185.25 2.069 28 184.25 2.058 28 166.19 1.856 458 161.44 1.803 608 158.13 1.766 1000 154.69 1.728 548 150.81 1.684 315
in D2O
KBr disc
nujol mull
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