4,5-Imidazoledicarboxylic acid(570-22-9) IR1
Molecular FormulaC5H4N2O4
Molecular Weight156.1
InChIInChI=1S/C5H4N2O4/c8-4(9)2-3(5(10)11)7-1-6-2/h1H,(H,6,7)(H,8,9)(H,10,11)
InChIKey ZEVWQFWTGHFIDH-UHFFFAOYSA-N
SmilesC1NC(C(O)=O)=C(C(O)=O)N=1
-
![](https://www.chemicalbook.com/Spectrum/570-22-9_MS.gif)
Mass
MS-IW-0829
4,5-imidazoledicarboxylic acid
C5H4N2O4 (Mass of molecular ion: 156)
Source Temperature: 180 °C
Sample Temperature: 230 °C
Direct, 75 eV
18.0 3.1
27.0 2.2
28.0 15.9
29.0 2.8
38.0 3.1
39.0 5.5
40.0 21.0
41.0 10.8
42.0 1.2
44.0 64.0
45.0 4.0
56.0 1.0
57.0 1.1
65.0 1.1
66.0 2.5
67.0 34.9
68.0 32.4
69.0 1.6
84.0 1.5
85.0 1.0
93.0 1.0
94.0 45.5
95.0 20.6
96.0 1.2
112.0 100.0
113.0 6.7
121.0 8.2
139.0 2.1
156.0 10.4
157.0 1.6