400 MHz in DMSO-d6
-
1H NMR 399.65 MHz C11 H12 O5 0.041 g : 0.5 ml DMSO-d6 trans-4-hydroxy-3,5-dimethoxycinnamic acid 
Assign. Shift(ppm)
A 12.2 B 8.9 C 7.565 D 7.010 E 6.450 F 3.823
Hz ppm Int.3017.67 7.551 84 3001.73 7.511 92 2801.53 7.010 334 2585.40 6.470 105 2569.46 6.430 97 1527.97 3.824 1000
in DMSO-d6
