Product Name1-METHYLCYCLOPROPANE-1-CARBOXYLIC ACID
CAS6914-76-7
Molecular FormulaC5H8O2
Molecular Weight100.12
InChIInChI=1S/C5H8O2/c1-5(2-3-5)4(6)7/h2-3H2,1H3,(H,6,7)
InChIKey DIZKLZKLNKQFGB-UHFFFAOYSA-N
SmilesC1(C)(C(O)=O)CC1

Mass
MS-NW-8562 1-methylcyclopropanecarboxylic acid C5H8O2 (Mass of molecular ion: 100)
Source Temperature: 260 °C Sample Temperature: 140 °C Reservoir, 75 eV
15.0 2.1
26.0 7.6
27.0 35.8
28.0 16.0
29.0 46.9
30.0 1.3
31.0 1.7
37.0 2.0
38.0 3.7
39.0 37.0
40.0 4.1
41.0 28.7
42.0 3.7
43.0 12.0
44.0 1.6
45.0 16.7
49.0 1.0
50.0 4.9
51.0 5.5
52.0 1.9
53.0 19.9
54.0 20.6
55.0 100.0
56.0 22.5
57.0 7.1
58.0 3.7
59.0 3.3
60.0 1.4
69.0 3.3
71.0 2.9
72.0 4.3
73.0 2.9
74.0 2.5
81.0 1.9
82.0 13.1
83.0 4.4
85.0 28.8
86.0 1.4
99.0 27.9
100.0 24.5
101.0 1.8
400 MHz in CDCl3

| 1H NMR | 399.65 MHz |
| C5 H8 O2 | 0.05 ml : 0.5 ml CDCl3 |
| 1-methylcyclopropanecarboxylic acid | |
![]() |
Assign. Shift(ppm) |
Hz ppm Int.
4891.82 12.241 50
520.93 1.304 212
520.19 1.302 192
519.64 1.301 151
519.09 1.299 173
517.08 1.294 507
516.71 1.293 512
513.60 1.286 714
512.32 1.282 1000
501.88 1.256 32
500.41 1.253 39
302.41 0.757 203
301.68 0.755 186
298.20 0.747 650
295.08 0.739 548
291.42 0.730 165
290.69 0.728 151
in CDCl3

KBr disc

liquid film

nujol mull

4880 A,200 M,powder

1-METHYLCYCLOPROPANE-1-CARBOXYLIC ACID(6914-76-7) 1H NMR Atlas of Related Products