Trimethylsilyl propanoic acid
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| Trimethylsilyl propanoic acid | |
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3-(Trimethylsilyl)propanoic acid |
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Other names
3-Trimethylsilylpropanoate; 3-(Trimethylsilyl)propionic acid; 2,2-Dimethyl-2-silapentan-5-oic acid |
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| Identifiers | |
| CAS number | 5683-30-7  |
| PubChem | 79764 |
| ChemSpider | 72062 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C6H14O2Si (acid), C6H13O2Si- (anion) |
| Molar mass | 146.26 g/mol (acid), 145.25 g/mol (anion), 172,27 g/mol (Sodium salt of deuterated molecule) |
| Exact mass | 145.068481 (anion) |
| Appearance | Colorless liquid |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Trimethylsilyl propanoic acid (TMSP or TSP) is a chemical compound containing a trimethylsilyl group. It is used as internal reference in the NMR spectrum nuclear magnetic resonance for aqueous solvents (e.g. D2O). For that use it is often deuterated (3-(trimethylsilyl)-2,2',3,3'-tetradeuteropropionic acid or TMSP-d4).[1] Other internal references that are frequently used in NMR experiments are DSS and tetramethylsilane.
propionate.svg)
[edit] References
- ^ Pohl, L.; Eckle, M. (1969). "Sodium 3-(trimethylsilyl)tetradeuteriopropionate, a new water-soluble standard for 1H.N.M.R.". Angewandte Chemie, International Edition in English 8 (5): 381. doi:10.1002/anie.196903811.
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