Product Name4-Formylbenzoic acid
CAS619-66-9
Molecular FormulaC8H6O3
Molecular Weight150.13
InChIInChI=1S/C8H6O3/c9-5-6-1-3-7(4-2-6)8(10)11/h1-5H,(H,10,11)
InChIKey GOUHYARYYWKXHS-UHFFFAOYSA-N
SmilesC(O)(=O)C1=CC=C(C=O)C=C1

Mass
MS-NW-8858 terephthalaldehydic acid C8H6O3 (Mass of molecular ion: 150)
Source Temperature: 190 °C Sample Temperature: 130 °C Direct, 75 eV
27.0 1.3
28.0 1.4
29.0 1.5
38.0 1.9
39.0 4.9
45.0 1.4
50.0 10.1
51.0 14.4
52.0 2.8
53.0 1.5
65.0 22.1
66.0 2.7
73.0 1.0
74.0 5.1
75.0 5.6
76.0 5.8
77.0 14.3
78.0 1.4
93.0 4.2
103.0 2.4
104.0 2.1
105.0 12.1
106.0 1.2
121.0 32.3
122.0 3.7
133.0 6.8
149.0 100.0
150.0 86.7
151.0 8.6
90 MHz in DMSO-d6
400 MHz in DMSO-d6

| 1H NMR | 89.56 MHz |
| C8 H6 O3 | 0.042 g : 0.5 ml DMSO-d6 |
| terephthalaldehydic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
907.32 10.131 831
736.04 8.219 191
734.08 8.197 102
729.59 8.147 169
727.54 8.124 945
722.56 8.068 1000
720.31 8.043 233
716.11 7.996 133
714.84 7.982 196
714.06 7.973 241
711.33 7.943 44
710.35 7.932 38
709.57 7.923 32
709.18 7.919 30
708.69 7.914 29

| 1H NMR | 399.65 MHz |
| C8 H6 O3 | 0.039 g : 0.5 ml DMSO-d6 |
| terephthalaldehydic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
4052.09 10.140 1000 3268.30 8.178 603 3259.96 8.158 853 3227.48 8.076 22 3226.20 8.073 24 3225.56 8.071 29 3219.58 8.057 904 3217.87 8.052 322 3212.95 8.040 269 3211.24 8.036 625
in DMSO-d6

KBr disc

nujol mull

4880 A,150M,powder

4-Formylbenzoic acid(619-66-9) Raman Atlas of Related Products
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