CIS-ACONITIC ANHYDRIDE(6318-55-4) IR2
Molecular FormulaC6H4O5
Molecular Weight156.09
InChIInChI=1S/C6H4O5/c7-4(8)1-3-2-5(9)11-6(3)10/h2H,1H2,(H,7,8)
InChIKey GVJRTUUUJYMTNQ-UHFFFAOYSA-N
SmilesO1C(=O)C=C(CC(O)=O)C1=O
-
![](https://www.chemicalbook.com/Spectrum/6318-55-4_MS_1.jpg)
Mass
MS-NW-1172
cis-1,2,3-propenetricarboxylic 1,2-anhydride
C6H4O5 (Mass of molecular ion: 156)
Source Temperature: 220 °C
Sample Temperature: 180 °C
Direct, 75 eV
12.0 2.2
14.0 1.8
16.0 5.0
17.0 7.5
18.0 34.3
25.0 2.8
26.0 4.2
27.0 2.1
28.0 11.4
29.0 4.2
34.0 1.2
36.0 2.9
37.0 14.9
38.0 23.1
39.0 92.9
40.0 100.0
41.0 5.8
42.0 5.6
43.0 2.2
44.0 97.2
45.0 12.6
53.0 4.9
55.0 2.2
66.0 2.4
67.0 5.6
68.0 82.5
69.0 4.8
84.0 22.8
85.0 1.4
86.0 1.2
111.0 1.4
112.0 17.6
113.0 1.2