400 MHz in DMSO-d6
-
1H NMR 399.65 MHz C9 H10 O5 0.040 g : 0.5 ml DMSO-d6 3-hydroxy-4,5-dimethoxybenzoic acid 
Assign. Shift(ppm)
A *1 12.78 B *1 9.57 C 7.149 D 7.074 E *2 3.826 F *2 3.751 J(C,D)=1.9HZ
Hz ppm Int.5107.05 12.779 26 3824.52 9.570 35 2858.24 7.152 183 2856.31 7.148 200 2828.54 7.078 180 2826.40 7.073 159 1529.34 3.827 754 1503.48 3.762 36 1500.28 3.754 1000
in DMSO-d6
KBr disc
nujol mull
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