Cyclopentanemalonic acid(5660-81-1) IR2
Molecular FormulaC8H12O4
Molecular Weight172.18
InChIInChI=1S/C8H12O4/c9-7(10)6(8(11)12)5-3-1-2-4-5/h5-6H,1-4H2,(H,9,10)(H,11,12)
InChIKey DRHLPIHNSBNMFF-UHFFFAOYSA-N
SmilesC(O)(=O)C(C1CCCC1)C(O)=O
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![](https://www.chemicalbook.com/Spectrum/5660-81-1_MS_1.jpg)
Mass
MS-NW-1609
cyclopentylmalonic acid
C8H12O4 (Mass of molecular ion: 172)
Source Temperature: 200 °C
Sample Temperature: 140 °C
Direct, 75 eV
15.0 1.3
16.0 1.1
17.0 1.1
18.0 5.5
26.0 2.0
27.0 18.0
28.0 4.5
29.0 9.3
31.0 1.5
38.0 1.9
39.0 25.5
40.0 6.6
41.0 41.9
42.0 9.4
43.0 10.5
44.0 26.8
45.0 6.8
50.0 1.8
51.0 3.2
52.0 1.9
53.0 14.3
54.0 11.2
55.0 10.9
56.0 3.2
57.0 3.3
58.0 1.6
60.0 24.3
61.0 15.1
65.0 2.0
66.0 8.8
67.0 38.9
68.0 58.7
69.0 16.8
70.0 1.9
71.0 1.5
73.0 4.1
77.0 2.0
79.0 3.8
80.0 2.3
81.0 20.4
82.0 5.4
83.0 1.7
85.0 7.9
86.0 14.1
87.0 19.6
97.0 3.5
98.0 2.5
99.0 10.4
100.0 1.8
104.0 22.0
105.0 100.0
106.0 3.6
107.0 1.4
108.0 1.9
109.0 2.5
110.0 8.8
111.0 5.3
113.0 1.0
125.0 1.6
126.0 15.2
127.0 5.5
128.0 4.5
129.0 14.0