3-(2,3,4-TRIMETHOXYPHENYL)PROPIONIC ACID(33130-04-0) IR1
Product Name3-(2,3,4-TRIMETHOXYPHENYL)PROPIONIC ACID
CAS33130-04-0
Molecular FormulaC12H16O5
Molecular Weight240.25
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MassMS-IW-0805 3-(2,3,4-trimethoxyphenyl)propionic acid C12H16O5 (Mass of molecular ion: 240)
Source Temperature: 120 °C Sample Temperature: 100 °C Direct, 75 eV
18.0 1.4 28.0 1.0 39.0 1.0 55.0 1.4 65.0 1.7 77.0 2.6 79.0 1.1 91.0 5.2 95.0 1.5 105.0 1.5 106.0 1.7 107.0 1.2 120.0 1.1 121.0 2.9 123.0 4.0 133.0 2.0 135.0 1.4 136.0 7.2 137.0 2.3 149.0 2.1 151.0 3.4 153.0 1.9 161.0 1.1 165.0 2.7 166.0 33.7 167.0 6.4 168.0 1.2 179.0 1.9 180.0 1.0 181.0 100.0 182.0 10.9 183.0 3.3 192.0 1.3 193.0 5.3 194.0 4.4 195.0 1.1 209.0 2.2 225.0 1.1 240.0 92.5 241.0 12.3 242.0 1.7
400 MHz in CDCl3
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1H NMR 399.65 MHz C12 H16 O5 0.037 g : 0.5 ml CDCl3 3-(2,3,4-trimethoxyphenyl)propionic acid 
Assign. Shift(ppm)
A 11. B 6.851 C 6.600 D *1 3.900 E *1 3.865 F *1 3.839 G 2.887 J 2.642
Hz ppm Int.2742.74 6.863 94 2734.13 6.842 114 2641.63 6.610 128 2633.02 6.589 113 1558.93 3.901 1000 1544.83 3.866 984 1534.39 3.840 795 1162.37 2.909 62 1154.86 2.890 115 1151.57 2.882 23 1146.81 2.870 87 1063.46 2.661 96 1058.89 2.650 24 1056.69 2.645 75 1055.22 2.641 143 1053.02 2.635 27 1047.90 2.623 70
in CDCl3
KBr disc
nujol mull
