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MassMS-NW-9605 (-)-methyl beta-D-arabinopyranoside C6H12O5 (Mass of molecular ion: 164)
Source Temperature: 160 °C Sample Temperature: 110 °C Direct, 75 eV
15.0 5.3 17.0 1.2 18.0 6.5 19.0 4.0 27.0 3.2 28.0 3.7 29.0 7.0 30.0 1.2 31.0 9.1 33.0 6.4 39.0 1.3 41.0 4.1 42.0 5.5 43.0 17.0 44.0 6.3 45.0 11.3 55.0 2.9 56.0 1.9 57.0 16.7 58.0 4.4 59.0 6.4 60.0 100.0 61.0 35.9 62.0 1.3 68.0 1.0 69.0 3.9 71.0 16.3 72.0 1.3 73.0 70.4 74.0 46.3 75.0 3.3 85.0 4.1 86.0 8.0 87.0 4.7 91.0 2.0 100.0 3.5 103.0 1.2 114.0 2.4 115.0 3.6 116.0 1.6 133.0 8.6
400 MHz in D2O
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C6 H12 O5 0.038 g : 0.5 ml D2O (-)-methyl beta-D-arabinopyranoside 
Assign. Shift(ppm)
A 3.996 B 3.876 C 3.84 D 3.656 E 3.411 THE SOLVENT PEAK SUPPRESSED.
Hz ppm Int.1597.66 3.998 83 1596.31 3.995 92 1554.44 3.890 62 1553.59 3.888 71 1545.29 3.867 29 1541.75 3.858 91 1540.77 3.856 97 1535.40 3.842 175 1532.96 3.836 250 1531.01 3.831 176 1467.77 3.673 85 1465.58 3.668 91 1454.96 3.641 67 1452.88 3.636 68 1363.16 3.411 1000
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1H NMR 399.65 MHz C6 H12 O5 0.035 g : 0.5 ml DMSO-d6 (-)-methyl beta-D-arabinopyranoside Assign. Shift(ppm)
A *1 4.56 B *1 4.55 C *1 4.52 D 4.503 E *2 3.683 F 3.57 G *2 3.54 J 3.418 K 3.259
Hz ppm Int.1825.56 4.568 94 1822.75 4.561 123 1821.04 4.557 80 1819.34 4.553 134 1817.38 4.548 109 1808.23 4.525 119 1805.54 4.518 108 1801.39 4.508 109 1798.10 4.500 106 1797.49 4.498 107 1474.61 3.690 41 1471.92 3.684 56 1468.87 3.676 45 1431.64 3.583 51 1431.03 3.581 52 1425.05 3.566 62 1421.88 3.558 101 1419.07 3.551 170 1417.85 3.548 135 1414.06 3.539 54 1372.80 3.436 85 1369.87 3.428 80 1360.96 3.406 61 1358.03 3.399 65 1302.49 3.260 1000
in DMSO-d6
in D2O
KBr disc
nujol mull
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