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MassMS-NW-6872 1,2,3,5-tetra-O-acetyl-beta-D-ribofuranose C13H18O9 (Mass of molecular ion: 318)
Source Temperature: 170 °C Sample Temperature: 120 °C Direct, 75 eV
15.0 2.8 42.0 1.1 43.0 100.0 44.0 2.3 68.0 2.7 69.0 4.0 73.0 2.3 85.0 2.1 86.0 4.9 97.0 5.6 101.0 2.2 103.0 6.7 114.0 6.0 115.0 5.4 127.0 1.0 128.0 2.7 139.0 6.1 143.0 13.6 144.0 1.0 145.0 6.0 156.0 17.6 157.0 3.7 187.0 1.0 198.0 3.0 203.0 3.0 245.0 5.9 259.0 4.1
400 MHz in CDCl3
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1H NMR 399.65 MHz C13 H18 O9 0.040 g : 0.5 ml CDCl3 1,2,3,5-tetra-O-acetyl-beta-D-ribofuranose 
Assign. Shift(ppm)
A 6.165 B 5.354 C 5.346 D 4.378 E *1 4.33 F *1 4.154 G *2 2.135 J *2 2.105 K *2 2.098 L *2 2.081
Hz ppm Int.2463.99 6.166 207 2147.09 5.373 38 2142.21 5.361 110 2136.60 5.347 333 2133.06 5.338 30 2132.08 5.335 32 1755.13 4.392 31 1753.42 4.388 43 1752.44 4.385 30 1749.63 4.378 54 1748.78 4.376 46 1744.38 4.365 33 1743.53 4.363 39 1741.46 4.358 83 1729.61 4.328 81 1725.95 4.319 63 1667.85 4.174 74 1662.60 4.161 69 1656.01 4.144 57 1650.76 4.131 46 853.27 2.136 966 841.55 2.106 1000 838.62 2.099 926 834.84 2.089 52 831.79 2.082 943
in CDCl3
KBr disc
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