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MassMS2002-00942WA L-2-amino-4-hydroxybutyric acid C4H9NO3 (Mass of molecular ion: 119)
Source Temperature: 250 °C Sample Temperature: 25 °C Direct, 70 eV
15.0 3.4 17.0 1.0 18.0 14.5 19.0 1.4 26.0 1.7 27.0 7.1 28.0 33.6 29.0 6.7 30.0 12.8 31.0 14.0 39.0 1.2 40.0 1.2 41.0 3.2 42.0 13.6 43.0 10.8 44.0 68.5 45.0 3.2 46.0 4.9 54.0 2.2 55.0 4.1 56.0 27.4 57.0 5.6 70.0 1.2 71.0 1.1 72.0 1.4 73.0 3.4 74.0 100.0 75.0 4.7 89.0 2.1 101.0 1.8 120.0 1.5
400 MHz in D2O
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1H NMR 399.65 MHz C4 H9 N O3 0.041 g : 0.5 ml D2O L-2-amino-4-hydroxybutyric acid 
Assign. Shift(ppm)
A 3.860 B 3.78 C *1 2.160 D *1 2.028 SOLVENT PEAK REMOVED
Hz ppm Int.1549.19 3.877 519 1544.31 3.865 583 1541.63 3.858 574 1536.74 3.846 536 1530.52 3.830 102 1527.95 3.824 56 1526.37 3.820 75 1524.29 3.815 165 1519.04 3.801 530 1516.24 3.794 513 1512.94 3.786 1000 1510.62 3.780 658 1509.28 3.777 585 1506.84 3.771 510 1503.66 3.763 475 1499.27 3.752 122 1497.92 3.749 117 1492.43 3.735 80 1490.60 3.730 36 1490.11 3.729 35 879.88 2.202 104 875.00 2.190 152 873.78 2.187 167 868.29 2.173 182 867.07 2.170 163 865.11 2.165 193 861.82 2.157 161 859.99 2.152 266 859.13 2.150 276 853.39 2.136 280 847.17 2.120 162 840.33 2.103 32 839.97 2.102 32 834.11 2.088 31 826.90 2.070 174 820.92 2.055 326 814.82 2.039 253 813.48 2.036 328 807.50 2.021 223 806.27 2.018 221 799.93 2.002 150 798.58 1.999 180 792.60 1.984 94
in D2O
KBr disc
nujol mull
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