Product Name1H-Tetrazole-1-acetic acid
CAS21732-17-2
Molecular FormulaC3H4N4O2
Molecular Weight128.09
InChIInChI=1S/C3H4N4O2/c8-3(9)1-7-2-4-5-6-7/h2H,1H2,(H,8,9)
InChIKey GRWAIJBHBCCLGS-UHFFFAOYSA-N
SmilesN1(CC(O)=O)C=NN=N1

Mass
MS-IW-4911 (1H-tetrazol-1-yl)acetic acid C3H4N4O2 (Mass of molecular ion: 128)
Source Temperature: 160 °C Sample Temperature: 140 °C Direct, 75 eV
13.0 3.1
14.0 3.4
15.0 1.2
18.0 3.5
26.0 1.5
27.0 9.6
28.0 72.1
29.0 13.2
30.0 1.0
31.0 9.9
40.0 1.7
41.0 8.2
42.0 9.8
43.0 4.0
44.0 12.3
45.0 29.8
53.0 3.0
54.0 3.6
55.0 100.0
56.0 6.2
58.0 2.6
59.0 10.8
69.0 1.6
72.0 3.3
83.0 25.9
84.0 1.7
86.0 2.6
100.0 6.4
128.0 4.3
129.0 1.1
400 MHz in DMSO-d6

| 1H NMR | 399.65 MHz |
| C3 H4 N4 O2 | 0.038 g : 0.5 ml DMSO-d6 |
| (1H-tetrazol-1-yl)acetic acid | |
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Assign. Shift(ppm) |
Hz ppm Int.
3753.15 9.392 572 2175.94 5.445 1000
in DMSO-d6

KBr disc

nujol mull

1H-Tetrazole-1-acetic acid(21732-17-2) IR2 Atlas of Related Products