Trimethylsilylpropanoic acid
Appearance
(Redirected from Trimethylsilyl propionate)
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Names | |
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Preferred IUPAC name
3-(Trimethylsilyl)propanoic acid | |
Other names
3-Trimethylsilylpropanoate; 3-(Trimethylsilyl)propionic acid; 2,2-Dimethyl-2-silapentan-5-oic acid
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.024.678 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
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) |
Appearance | Colorless liquid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trimethylsilylpropanoic acid (TMSP or TSP) is a chemical compound containing a trimethylsilyl group. It is used as internal reference in 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.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Sodium_3-%28trimethylsilyl%29propionate.svg/220px-Sodium_3-%28trimethylsilyl%29propionate.svg.png)
References
[edit]- ^ Pohl, L.; Eckle, M. (1969). "Sodium 3-(trimethylsilyl)tetradeuteriopropionate, a new water-soluble standard for 1H NMR". Angewandte Chemie International Edition in English. 8 (5): 381. doi:10.1002/anie.196903811.