1H-Imidazole-4-carboxylic acid(1072-84-0) IR1
Molecular FormulaC4H4N2O2
Molecular Weight112.09
InChIInChI=1S/C4H4N2O2/c7-4(8)3-1-5-2-6-3/h1-2H,(H,5,6)(H,7,8)
InChIKey NKWCGTOZTHZDHB-UHFFFAOYSA-N
SmilesC1NC(C(O)=O)=CN=1
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![](https://www.chemicalbook.com/Spectrum/1072-84-0_MS.gif)
Mass
MS-IW-7844
4-imidazolecarboxylic acid
C4H4N2O2 (Mass of molecular ion: 112)
Source Temperature: 180 °C
Sample Temperature: 210 °C
Direct, 75 eV
17.0 3.0
18.0 15.3
26.0 5.5
27.0 28.6
28.0 29.9
29.0 2.5
33.5 1.1
38.0 3.4
39.0 6.3
40.0 27.9
41.0 17.7
42.0 1.1
44.0 30.5
45.0 2.5
57.0 1.2
66.0 2.6
67.0 31.8
68.0 30.1
69.0 1.6
84.0 1.2
93.0 1.4
94.0 38.6
95.0 22.1
96.0 1.2
112.0 100.0
113.0 6.5
188.0 2.7