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NMR spectroscopic data of caffeic acid in CD3OD.
| Position | δC | δH, mult. (J in Hz) |
|---|---|---|
| 1 | 127.82 | - |
| 2 | 115.10 | 7.06, d, (2.04) |
| 3 | 146.82 | - |
| 4 | 149.47 | - |
| 5 | 116.51 | 6.80, d, (8.16) |
| 6 | 122.88 | 6.95, dd, (2.04, 8.16) |
| 7 | 147.06 | 7.55, d, (15.88) |
| 8 | 115.55 | 6.23, d, (15.88) |
| 9 | 171.08 | - |
δC: chemical shift in ppm for 13C-NMR, δH: chemical shift in ppm for 1H-NMR; mult.: multiplicity; J in Hz: coupling constants in Hz; d: doublet, dd: doublet of doublet.
