3-(trimethylsilyl)propionic acid

CAS No. 5683-30-7

Formula: C6H14O2Si
Basic Info

Trimethylsilylpropanoic 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). Other internal references that are frequently used in NMR experiments are DSS and tetramethylsilane.

Formula
C6H14O2Si
Molecular Weight
146.26
Exact Mass
146.076
LogP
1.7993
PSA
37.3
Synonyms

4,4-dimethyl-4-silapentanoic acid

EINECS 227-145-4

trimethylsilyl propionic acid

Propionic acid,3-(trimethylsilyl)

3-(Trimethylsilyl)propanoic acid

3-trimethylsilylpropanoate

Propanoic acid,3-(trimethylsilyl)

3-trimethylsilylpropanoic acid

3-(Trimethylsilyl)propionic acid

2-Silapentan-5-oic acid,2,2-dimethyl

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Properties
Appearance & Physical State
Clear to straw liquid with distinct mild odor.
Density
0.926g/cm3
Boiling Point
223.6ºC at 760 mmHg
Melting Point
<0ºC
Flash Point
89ºC
Refractive Index
1.428
Safety Info
Safety Statements
S26; S36/37/39
Risk Statements
R36/37/38
Spectrum
NMR Spectrum 1H NMR : Predict
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