2,2,6,6-Tetramethylpiperidine, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Chemical Name: 2,2,6,6-Tetramethylpiperidine
- CAS No.: 768-66-1
- Molecular Formula: C9H19N
- Molecular weight: 141.25
- Appearance: clear colorless to light yellow-green liquid
- Sample: Available
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Description of 2,2,6,6-Tetramethylpiperidine
2,2,6,6-Tetramethylpiperidine or TMP or HTMP is an organic compound of the amine class. In appearance, it is a colorless liquid and has a “fishy”, amine-like odor. This amine is used in chemistry as a hindered base (hindered amine) because it can dissolve in organic solvents unlike inorganic bases such as potassium hydroxide.
There are many ways to synthesise TMP. One method starts with a conjugate addition reaction of ammonia to phorone. The intermediate triacetone amine is then reduced in a Wolff-Kishner reaction.
TMP is the starting material for an even stronger base lithium tetramethylpiperidide and the radical species TEMPO. Another non-nucleophilic base is N,N-diisopropylethylamine.
Tefenperate is made from 2,2,6,6-Tetramethylpiperidine precursor.
Basic Info of 2,2,6,6-Tetramethylpiperidine
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | 2,2,6,6-Tetramethylpiperidine |
| Synonyms | 2,2,6,6-Me4piperidine;PIPERIDINE,2,2,6,6-TETRAMETHYL;Piperidine, 2,2,6,6-tetramethyl-;EINECS 212-199-3;2,2,6,6-Tetramethylpeperidine;Expand |
| CAS No. | 768-66-1 |
| Molecular Formula | C9H19N |
| Molecular Weight | 141.25400 |
| PSA | 12.03000 |
| LogP | 2.64590 |
Numbering system
| MDL number | MFCD00005985 |
Properties
| Appearance & Physical State | clear colorless to light yellow-green liquid |
| Density | 0.837 |
| Boiling Point | 152ºC |
| Melting Point | -59ºC |
| Flash Point | 24ºC |
| Refractive Index | 1.443-1.446 |
| Water Solubility | MISCIBLE |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Storage Condition | Flammables area |
Safety Info
| RTECS | TN4220000 |
| Hazard Class | 3 |
| Safety Statements | S16-S26-S37/39 |
| HS Code | 29333999 |
| Packing Group | III |
| WGK Germany | 2 |
| RIDADR | UN 1992 |
| Risk Statements | R10; R22; R36/37/38 |
| Hazard Codes | Xn |
What is 2,2,6,6-Tetramethylpiperidine?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 2,2,6,6-Tetramethylpiperidine which has developed particularly rapidly in recent years. Do you know about 2,2,6,6-Tetramethylpiperidine?
The official answer: 2,2,6,6-Tetramethylpiperidine, an organic chemical substance, molecular formula: C9H19N.
What’s the application of 2,2,6,6-Tetramethylpiperidine?
Uses:
It is the intermediate of hindered amine light stabilizer and pharmaceutical intermediate.
Used in the production of tetramethylpiperidinol, tetramethylpiperidinamine, tetramethylpiperidone, TEMPO, etc., pharmaceutical intermediates, also used as organic synthesis reagents.
Its oxide (2,2,6,6-tetramethylpiperidine-N-oxide) is a very stable, high-yielding, and recyclable oxidation catalyst. It is used as a catalyst for the oxidation of various alcohols and polyols in organic synthesis, for the oxidation of primary alcohols to aldehydes with high selectivity and no further oxidation to carboxylic acids, and the oxidation of secondary alcohols to ketones. In polymer chemistry, it is used as a radical trapping agent, polymerization inhibitor, anti-aging agent, thermal degradation inhibitor, and light and heat stabilizer, and can also combine with reactive chain radicals as covalent dormant species. The covalent dormant species can be cleaved into chain radicals and grow again.
In polymer chemistry, it is used as a radical trapping agent, polymerization inhibitor, anti-aging agent, thermal degradation inhibitor, and light and heat stabilizer, and it can also combine with active chain radicals to form covalent dormant species. The covalent dormant species can be split into chain radicals and grow again.
TEMPO is paramagnetic and is used as an electron spin marker in biochemistry, and is widely used in the study of biomolecular structure and biological reaction mechanism. Also, due to its paramagnetic properties, it is not suitable for NMR spectroscopy and can be used in a gas phase or IR.
Conclusion
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