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MassMS-KW-0181 (S)-2-hydroxy-4-phthalimidobutyric acid C12H11NO5 (Mass of molecular ion: 249)
Source Temperature: 190 °C Sample Temperature: 170 °C Direct, 75 eV
17.0 1.5 18.0 7.4 26.0 1.6 27.0 4.7 28.0 11.3 29.0 3.4 38.0 1.3 39.0 1.3 42.0 1.0 43.0 1.0 44.0 3.4 45.0 1.0 50.0 8.8 51.0 4.3 52.0 2.1 55.0 3.4 56.0 4.1 57.0 1.7 66.0 2.1 74.0 3.1 75.0 5.2 76.0 22.4 77.0 14.9 78.0 1.7 102.0 6.2 103.0 6.6 104.0 18.5 105.0 10.0 106.0 1.1 117.0 1.4 129.0 1.3 130.0 20.2 131.0 2.2 132.0 3.4 133.0 7.8 146.0 1.1 147.0 17.1 148.0 16.7 149.0 2.7 160.0 100.0 161.0 17.9 162.0 1.8 169.0 1.1 174.0 79.6 175.0 21.3 176.0 2.3 185.0 2.3 186.0 2.3 187.0 1.2 203.0 3.7 204.0 15.3 205.0 3.0 213.0 1.2 249.0 1.1
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C12 H11 N O5 0.038 g : 0.5 ml DMSO-d6 (S)-2-hydroxy-4-phthalimidobutyric acid 
Assign. Shift(ppm)
A 12.6 B 7.86 C 5.36 D 4.047 E 3.716 F *1 2.043 G *1 1.858
Hz ppm Int.5021.69 12.566 31 3150.28 7.883 297 3147.53 7.876 230 3146.25 7.873 332 3145.70 7.872 308 3143.87 7.867 498 3141.49 7.861 1000 3140.39 7.858 555 3138.01 7.852 541 3137.09 7.850 929 3134.71 7.844 360 3132.70 7.839 272 3132.15 7.838 283 3130.68 7.834 186 3128.12 7.828 267 2145.06 5.368 32 1623.59 4.063 141 1619.74 4.053 159 1615.35 4.042 167 1611.50 4.033 141 1492.62 3.735 264 1485.48 3.717 508 1477.79 3.698 279 825.35 2.066 82 821.50 2.056 93 819.49 2.051 75 818.02 2.047 62 815.46 2.041 70 813.99 2.037 72 811.61 2.031 101 807.76 2.022 91 804.47 2.013 52 751.17 1.880 95 750.07 1.877 98 743.11 1.860 124 737.25 1.845 95 729.00 1.825 86
in DMSO-d6
KBr disk
Nujol
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