Syringic Acid (C9 H10 O5)
Authors: Sally Ralph, John Ralph, Larry L. Landucci
From: NMR Database of Lignin and Cell Wall Model Compounds.
Natural Isotopic formula weight: 198.1727
This is of the category: Monomers
Concentration: 110 mg/ml (Source: John Ralph)
Spectrometer: Bruker WM - 250 MHz
Assigned chemical shifts
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| H15 | OMe | 3.96 | 1 |
| H17 | OMe | 3.96 | 1 |
| H16 | OMe | 3.96 | 1 |
| H18 | OMe | 3.96 | 1 |
| H20 | OMe | 3.96 | 1 |
| H19 | OMe | 3.96 | 1 |
| H21 | 2 | 7.40 | 1 |
| H22 | 6 | 7.40 | 1 |
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| C1 | OMe | 56.66 | 1 |
| C2 | OMe | 56.66 | 1 |
| C3 | 2 | 108.20 | 1 |
| C4 | 6 | 108.20 | 1 |
| C5 | 1 | 121.40 | 1 |
| C8 | 4 | 141.61 | 1 |
| C6 | 3 | 148.30 | 1 |
| C7 | 5 | 148.30 | 1 |
| C9 | A | 167.68 | 1 |
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| C1 | OMe | 55.92 | 1 |
| C2 | OMe | 55.92 | 1 |
| C3 | 2 | 106.85 | 1 |
| C4 | 6 | 106.85 | 1 |
| C5 | 1 | 120.32 | 1 |
| C8 | 4 | 140.17 | 1 |
| C6 | 3 | 147.37 | 1 |
| C7 | 5 | 147.37 | 1 |
| C9 | A | 167.14 | 1 |