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MassMS-NW-2343 4-hydroxy-3-methoxycinnamic acid C10H10O4 (Mass of molecular ion: 194)
Source Temperature: 200 °C Sample Temperature: 120 °C Direct, 75 eV
15.0 1.9 17.0 1.7 18.0 8.5 27.0 2.4 28.0 2.9 29.0 1.7 38.0 1.9 39.0 5.6 41.0 3.0 43.0 2.0 44.0 2.2 45.0 2.2 50.0 4.4 51.0 11.1 52.0 5.2 53.0 4.2 55.0 6.4 61.0 1.1 62.0 2.6 63.0 5.6 64.0 1.1 65.0 3.8 66.0 1.6 67.0 5.1 69.0 4.5 74.0 1.2 75.0 1.0 76.0 1.3 77.0 12.6 78.0 6.2 79.0 3.3 81.0 2.1 83.0 1.1 89.0 7.6 90.0 1.0 91.0 2.5 93.0 1.2 94.0 1.0 95.0 6.5 105.0 8.6 106.0 2.6 107.0 7.6 108.0 1.2 109.0 2.8 117.0 4.8 118.0 1.6 119.0 1.0 123.0 6.1 133.0 19.3 134.0 6.0 135.0 3.2 137.0 1.4 145.0 5.3 147.0 1.0 148.0 4.3 149.0 3.9 150.0 3.0 151.0 6.4 161.0 4.3 163.0 1.1 177.0 8.4 178.0 1.4 179.0 19.7 180.0 2.0 193.0 5.6 194.0 100.0 195.0 11.2 196.0 1.5
400 MHz in DMSO-d6
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1H NMR 399.65 MHz C10 H10 O4 0.040 g : 0.5 ml DMSO-d6 4-hydroxy-3-methoxycinnamic acid 
Assign. Shift(ppm)
A 12.2 B 9.57 C 7.524 D 7.302 E 7.106 F 6.819 G 6.396 J 3.838
Hz ppm Int.4860.14 12.161 25 3826.35 9.575 77 3015.29 7.545 159 2999.35 7.505 172 2919.49 7.306 170 2917.48 7.301 174 2845.31 7.120 88 2843.48 7.115 85 2837.07 7.099 100 2835.23 7.095 95 2729.18 6.829 217 2721.12 6.809 205 2563.78 6.416 221 2548.03 6.376 202 1534.02 3.839 1000
in DMSO-d6
KBr disc
nujol mull
4880 A,200 M,powder
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