Syringaldehyde (C9 H10 O4)
Authors: Sally Ralph, John Ralph, Larry L. Landucci
From: NMR Database of Lignin and Cell Wall Model Compounds.
Natural Isotopic formula weight: 182.1733
This is of the category: Monomers
Concentration: 124 mg/ml (Source: John Ralph)
Spectrometer: Bruker WM - 250 MHz
Assigned chemical shifts
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| C1 | OMe | 56.48 | 1 |
| C2 | OMe | 56.48 | 1 |
| C3 | 2 | 106.81 | 1 |
| C4 | 6 | 106.81 | 1 |
| C6 | 1 | 128.34 | 1 |
| C9 | 4 | 141.03 | 1 |
| C7 | 3 | 147.44 | 1 |
| C8 | 5 | 147.44 | 1 |
| C5 | A | 190.79 | 1 |
| H14 | OMe | 3.95 | 1 |
| H16 | OMe | 3.95 | 1 |
| H15 | OMe | 3.95 | 1 |
| H17 | OMe | 3.95 | 1 |
| H19 | OMe | 3.95 | 1 |
| H18 | OMe | 3.95 | 1 |
| H20 | 2 | 7.15 | 1 |
| H21 | 6 | 7.15 | 1 |
| H22 | A | 9.81 | 1 |
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| C1 | OMe | 56.64 | 1 |
| C2 | OMe | 56.64 | 1 |
| C3 | 2 | 107.74 | 1 |
| C4 | 6 | 107.74 | 1 |
| C6 | 1 | 129.02 | 1 |
| C9 | 4 | 142.92 | 1 |
| C7 | 3 | 148.94 | 1 |
| C8 | 5 | 148.94 | 1 |
| C5 | A | 191.05 | 1 |
| H14 | OMe | 3.91 | 1 |
| H16 | OMe | 3.91 | 1 |
| H15 | OMe | 3.91 | 1 |
| H17 | OMe | 3.91 | 1 |
| H19 | OMe | 3.91 | 1 |
| H18 | OMe | 3.91 | 1 |
| H20 | 2 | 7.23 | 1 |
| H21 | 6 | 7.23 | 1 |
| H22 | A | 9.81 | 1 |
| H23 | OH | 8.20 | 1 |
| Atom ID | Author Nomenclature | Value | Ambiguity Code |
|---|---|---|---|
| C1 | OMe | 56.02 | 1 |
| C2 | OMe | 56.02 | 1 |
| C3 | 2 | 107.05 | 1 |
| C4 | 6 | 107.05 | 1 |
| C6 | 1 | 127.14 | 1 |
| C9 | 4 | 142.11 | 1 |
| C7 | 3 | 148.09 | 1 |
| C8 | 5 | 148.09 | 1 |
| C5 | A | 190.99 | 1 |