Product Name2,4-Dimethylbenzenesulfonic acid
CAS88-61-9
Molecular FormulaC8H10O3S
Molecular Weight186.23
InChIInChI=1S/C8H10O3S/c1-6-3-4-8(7(2)5-6)12(9,10)11/h3-5H,1-2H3,(H,9,10,11)
InChIKey CHZLVSBMXZSPNN-UHFFFAOYSA-N
SmilesC1(S(O)(=O)=O)=CC=C(C)C=C1C

Mass
MS-NW-0216 m-xylene-4-sulfonic acid C8H10O3S 2H2O (Mass of molecular ion: 186)
Source Temperature: 180 °C Sample Temperature: 0 °C Direct, 75 eV
17.0 2.0
18.0 9.8
27.0 5.8
38.0 1.4
39.0 11.1
40.0 1.1
41.0 2.5
44.5 1.0
50.0 4.2
51.0 11.9
52.0 4.1
53.0 4.9
61.5 2.2
63.0 8.7
64.0 2.1
65.0 6.1
74.0 1.8
75.0 1.7
76.0 1.9
77.0 30.6
78.0 26.4
78.0 2.6
79.0 13.5
79.0 1.3
89.0 3.3
90.0 1.0
91.0 7.3
91.0 1.2
92.0 1.9
93.0 1.6
102.0 3.7
103.0 34.0
103.0 3.0
104.0 100.0
104.0 23.2
105.0 22.5
105.0 20.2
106.0 2.5
106.0 2.3
107.0 3.4
120.0 15.3
120.0 3.6
121.0 12.7
122.0 3.7
150.0 4.3
151.0 7.9
152.0 1.1
168.0 2.8
169.0 1.1
186.0 78.4
187.0 8.2
188.0 4.1
90 MHz in D2O
400 MHz in DMSO-d6

| 1H NMR | 89.56 MHz |
| C8 H10 O3 S | 0.057 g : 0.5 ml D2O |
| m-xylene-4-sulfonic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
700.25 7.819 125
692.38 7.731 165
642.06 7.170 370
634.44 7.084 96
233.06 2.603 1000
207.13 2.313 946

| 1H NMR | 399.65 MHz |
| C8 H10 O3 S | 0.041 g : 0.5 ml DMSO-d6 |
| m-xylene-4-sulfonic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
3052.49 7.638 198
3044.68 7.619 210
2795.29 6.995 196
2786.01 6.972 103
2785.52 6.970 104
2778.20 6.952 91
2777.59 6.951 94
2777.10 6.949 91
2776.49 6.948 87
997.19 2.496 1000
901.12 2.255 938
in D2O
in DMSO-d6


KBr disc

nujol mull

2,4-Dimethylbenzenesulfonic acid(88-61-9) MS Atlas of Related Products
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