Product Name5-Methoxyindole-3-acetic acid
CAS3471-31-6
Molecular FormulaC11H11NO3
Molecular Weight205.21
InChIInChI=1S/C11H11NO3/c1-15-8-2-3-10-9(5-8)7(6-12-10)4-11(13)14/h2-3,5-6,12H,4H2,1H3,(H,13,14)
InChIKey COCNDHOPIHDTHK-UHFFFAOYSA-N
SmilesN1C2=C(C=C(OC)C=C2)C(CC(O)=O)=C1

Mass
MS-NW-7966 5-methoxy-3-indoleacetic acid C11H11NO3 (Mass of molecular ion: 205)
Source Temperature: 210 °C Sample Temperature: 140 °C Direct, 75 eV
28.0 1.3
39.0 1.6
50.0 1.0
51.0 2.0
52.0 1.3
62.0 1.4
63.0 3.3
64.0 1.1
75.0 1.2
77.0 1.4
80.0 1.8
89.0 5.0
90.0 4.3
102.0 1.1
106.0 1.2
116.0 2.7
117.0 10.5
118.0 1.7
128.0 1.1
129.0 1.3
130.0 1.2
134.0 2.0
144.0 2.3
145.0 17.2
146.0 2.8
159.0 1.9
160.0 100.0
161.0 12.3
162.0 5.4
190.0 1.2
205.0 52.4
206.0 6.6
400 MHz in DMSO-d6
90 MHz in DMSO-d6

| 1H NMR | 399.65 MHz |
| C11H11NO3 | 0.039 g : 0.5 ml DMSO-d6 |
| 5-methoxy-3-indoleacetic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
4857.17 12.150 5 4292.98 10.739 55 2903.57 7.263 137 2894.78 7.241 148 2875.73 7.194 109 2873.16 7.187 106 2799.89 7.004 120 2797.33 6.998 121 2699.69 6.753 89 2697.31 6.747 84 2690.90 6.731 80 2688.52 6.725 77 1566.73 3.919 6 1518.37 3.798 6 1496.21 3.743 1000 1447.85 3.622 342 1423.49 3.561 8

| 1H NMR | 89.56 MHz |
| C11 H11 N O3 | 0.042 g : 0.5 ml DMSO-d6 |
| 5-methoxy-3-indoleacetic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
962.30 10.745 54
654.69 7.311 110
654.20 7.305 109
645.51 7.208 260
642.97 7.180 107
628.61 7.019 111
626.17 6.992 125
608.79 6.798 100
606.54 6.773 78
600.20 6.702 69
597.75 6.675 55
335.35 3.745 1000
330.96 3.696 28
330.27 3.688 27
324.61 3.625 340
in DMSO-d6

KBr disc

nujol mull


5-Methoxyindole-3-acetic acid(3471-31-6) MS Atlas of Related Products
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