白屈菜酸(99-32-1)核磁图(1HNMR)
InChI:
InChIKey:
Smiles:
-
Mass
MS-KW-0494
4-oxo-4H-pyran-2,6-dicarboxylic acid
C7H4O6 H2O (Mass of molecular ion: 184)
Source Temperature: 190 °C
Sample Temperature: 210 °C
Direct, 75 eV
14.0 1.5
16.0 1.2
17.0 1.3
18.0 6.3
25.0 1.8
26.0 5.4
28.0 25.4
29.0 2.6
37.0 2.4
38.0 3.4
39.0 4.1
40.0 1.9
41.0 13.6
42.0 8.4
43.0 1.0
44.0 56.7
45.0 6.6
49.0 1.2
50.0 2.7
52.0 1.1
53.0 15.7
54.0 1.9
55.0 1.4
66.0 2.2
68.0 2.6
69.0 100.0
70.0 8.7
71.0 8.2
95.0 4.5
96.0 3.5
111.0 1.2
112.0 4.2
128.0 4.1
139.0 13.4
140.0 9.2
156.0 28.9
157.0 2.0
167.0 2.0
184.0 32.3
185.0 2.9
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| 1H NMR |
399.65 MHz |
| C7 H4 O6
|
0.034 g : 0.5 ml DMSO-d6
|
| 4-oxo-4H-pyran-2,6-dicarboxylic acid
|
 |
Assign. Shift(ppm)
A 8.
B 6.964
|
Hz ppm Int.
2783.20 6.965 1000