馬來酸(110-16-7)核磁圖(1HNMR)
InChI:InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
InChIKey: VZCYOOQTPOCHFL-UPHRSURJSA-N
Smiles:C(O)(=O)/C=C\C(O)=O
-
Mass
MS-IW-4644
maleic acid
C4H4O4 (Mass of molecular ion: 116)
Source Temperature: 150 °C
Sample Temperature: 130 °C
Direct, 75 eV
15.0 1.5
17.0 3.2
18.0 16.6
24.0 1.2
25.0 6.5
26.0 46.2
27.0 36.5
28.0 9.7
29.0 8.1
37.0 1.0
41.0 4.7
42.0 3.6
43.0 5.8
44.0 12.5
45.0 66.6
46.0 16.8
52.0 1.9
53.0 16.9
54.0 34.0
55.0 32.8
56.0 1.3
69.0 2.0
70.0 1.8
71.0 14.5
72.0 100.0
73.0 4.3
81.0 1.5
82.0 1.9
98.0 22.7
99.0 30.9
100.0 1.6
116.0 2.2
117.0 1.2
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| 1H NMR |
399.65 MHz |
| C4 H4 O4
|
0.041 g : 0.5 ml DMSO-d6
|
| maleic acid
|
 |
Assign. Shift(ppm)
A 11.
B 6.285
|
Hz ppm Int.
2511.95 6.286 1000