Table 1.
Compound | Mr | Assignment | 1H/ppm | 15N/ppm | 2JNH or 3JNH Hza | 3JHH Hz |
---|---|---|---|---|---|---|
Aldehydes | ||||||
Arabinose# | 150.13 | H1 | 7.67 | 368.7 | 2.13 | 5.09 |
H2 | 4.60 | |||||
Galactose* | 180.16 | H1 | 7.69 | 367.9 | 2.17 | 4.93 |
H2 | 4.63 | |||||
Glucose* | 180.16 | H1 | 7.64 | 370.7 | 2.15 | 6.12 |
H2 | 4.46 | |||||
Mannose* | 180.16 | H1 | 7.70 | 369.9 | 2.18 | 6.38 |
H2 | 4.56 | |||||
Ribose# | 150.13 | H1 | 7.65 | 370.8 | 2.22 | 6.22 |
H2 | 4.53 | |||||
erythrose-4-phosphate | 200.084 | H1 | 7.69 | 370.5 | 2.27 | 6.16 |
H2 | 4.39 | |||||
pyridoxal phosphate | 247.142 | H3 | 8.74 | 381.8 | 1.5 (3JNH) | |
glyceraldehyde-3-phosphate | 170.058 | H1 | 7.67 | 369.8 | 2.25 | 5.15 |
H2 | 4.51 | |||||
Ketones | ||||||
Xylose# | 150.13 | H1 | 7.66 | 369.5 | 2.15 | 5.62 |
H2 | 4.46 | |||||
Acetone | 58.08 | Me | 1.91 | 345.9 | 2 | - |
Fructose* | 180.16 | H1 | 5.21 | |||
H3 | 4.44,4.40 | 355.5 | 3.2 | |||
Pyruvate | 87.06 | H3 | 2.01 | 337.2 | 3.9 | |
2.03 | 340.9 | 1.9 | ||||
2-oxobutanoate | 101.08 | H3 | 2.37 | 336.9 | 3.5 | |
H3 minor | 2.52 | 333.4 | ||||
2-oxoglutarate | 146.1 | H3 | 2.59 | 340.8 | 3.5 | |
H3 minor | 2.74 | 338.5 | ||||
oxalacetate | 132.07 | H3 | 3.43 | 345.7 | ≈1 | |
H3 minor | 3.21 | 345.0 | ||||
dihydroxyacetone phosphate | 170.058 | H3 | 4.69, 4.36 | 357.1 | 1.5 | 7.9 |
H1 | 4.47 | 359.4 |
isomeric pentoses;
isomeric hexoses