TEMPO
- CAS No.
- 2564-83-2
- Chemical Name:
- TEMPO
- Synonyms
- TEMPO;TEPO;2,2,6,6-TETRAMETHYL-1-PIPERIDINYLOXY;2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL;2,2,6,6-Tetramethylpiperidin-1-oxyl;(2,2,6,6-Tetramethylpiperidin-1-yl)oxyl;2,2,6,6-TETRAMETHYLPIPERIDINE-N-OXYL;Tanane;Tanan;TEMPO,98%
- CBNumber:
- CB6309451
- Molecular Formula:
- C9H18NO*
- Molecular Weight:
- 156.25
- MDL Number:
- MFCD00009599
- MOL File:
- 2564-83-2.mol
- MSDS File:
- SDS
Melting point | 36-38 °C(lit.) |
---|---|
Boiling point | 193°C |
Density | 1 g/cm3 |
vapor pressure | 0.4 hPa (20 °C) |
refractive index | 1.4350 (estimate) |
Flash point | 154 °F |
storage temp. | Store below +30°C. |
solubility | 9.7g/l |
form | Powder |
color | Yellow to green |
PH | 8.3 (9g/l, H2O, 20℃) |
Water Solubility | Soluble in all organic solvents. Insoluble in water. |
Merck | 14,9140 |
BRN | 1422418 |
Stability | Stable. Incompatible with strong acids, strong oxidizing agents. Refrigerate. |
InChIKey | RVWUHFFPEOKYLB-UHFFFAOYSA-N |
CAS DataBase Reference | 2564-83-2(CAS DataBase Reference) |
EWG's Food Scores | 1 |
FDA UNII | VQN7359ICQ |
NIST Chemistry Reference | 1-Piperidinyloxy, 2,2,6,6-tetramethyl-(2564-83-2) |
EPA Substance Registry System | 1-Piperidinyloxy, 2,2,6,6-tetramethyl- (2564-83-2) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS05 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Danger | |||||||||
Hazard statements | H314-H412 | |||||||||
Precautionary statements | P260-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
Hazard Codes | C,Xi | |||||||||
Risk Statements | 34-36/37/38 | |||||||||
Safety Statements | 26-36/37/39-45-24/25 | |||||||||
RIDADR | UN 3263 8/PG 2 | |||||||||
WGK Germany | 3 | |||||||||
RTECS | TN8991900 | |||||||||
Autoignition Temperature | 275 °C | |||||||||
TSCA | Yes | |||||||||
HazardClass | 8 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29333999 | |||||||||
NFPA 704 |
|
TEMPO price More Price(48)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 214000 | TEMPO 98% | 2564-83-2 | 1g | $28.2 | 2024-03-01 | Buy |
Sigma-Aldrich | 214000 | TEMPO 98% | 2564-83-2 | 5g | $64.1 | 2024-03-01 | Buy |
Sigma-Aldrich | 8.14681 | 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical) for synthesis | 2564-83-2 | 5G | $108 | 2022-05-15 | Buy |
Sigma-Aldrich | 8.14681 | 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical) for synthesis | 2564-83-2 | 25g | $201 | 2022-05-15 | Buy |
TCI Chemical | T1560 | 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical >98.0%(GC)(T) | 2564-83-2 | 5g | $45 | 2024-03-01 | Buy |
TEMPO Chemical Properties,Uses,Production
Description
2,2,6,6-Tetramethylpiperidine is a product that is used for the most diverse purposes because of its strong basicity, for example, as a light stabilizer for polyolefins, as a cocatalyst in olefin polymerizations (Ziegler catalysts), as a building block for the synthesis of pharmaceuticals and crop protection products, as a cocatalyst in the synthesis of dichloroacetyl chloride. The 4-unsubstituted 2.2.6,6-tetramethylpiperidine is generally prepared from the corresponding 4-oxo compound. It is known that triacetonamine can be converted by hydrazine to the hydrazone, which is then cleaved in the presence of alkali into 2,26,6-tetramethylpiperidine and nitrogen.
Chemical Properties
orange crystals or powder
Characteristics
2,2,6,6-Tetramethylpiperidinooxy(TEMPO) has the characteristics of high yield, good selectivity, good stability, and recyclable use.
Uses
TEMPO(2,2,6,6-Tetramethylpiperidinooxy) is a stable radical prepared through the oxidation of 2,2,6,6-tetramethylpiperidine. TEMPO has a wide range of applications including use as a free radical scavenger, a reagent in organic synthe sis and as a structural probe in electron spin resonance spectroscopy. TEMPO can also be used as a mediator in free radical polymerization.
Uses
In organic chemistry as a radical trap, 2,2,6,6-Tetramethylpiperidinooxy can be used as a catalyst and in polymerization mediation.
Uses
TEMPO can be used:
- As a catalytic oxidant for copper-catalyzed, greener oxidation of alcohols under aerobic conditions.
- As a catalytic oxidant in the iodobenzene diacetae oxidation of nerol to neral.
- For trapping the styrenyl radical generated from benzoyl peroxide during nitroxide-mediated radical polymerization of styrene.
- In the carboxylation of water-resistant nanofibrillated cellulose (NFC) films.
Copper(I)/TEMPO-catalyzed aerobic oxidation of primary alcohols to aldehydes with ambient air
General Description
For a synthetic protocol using NMP initiators, contributed by Prof. Karen Wooley, please visit our technology spotlight.
Purification Methods
Purify TEMPO by sublimation (33o, water aspirator) [Hay & Fincke J Am Chem Soc 109 8012 1987, Keana Chem Rev 78 37 1978].
TEMPO Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20294 | 58 |
Jinan Dexinjia Bio&Tech Co., Ltd | +86-0531-82375893 +86-15553111391 | sales@jndxj.com | China | 1263 | 58 |
Changyi Longchang Bio-Chemical Co., LTD | +86-13256193735; +8613256193735 | sale01@longchangchemical.com | China | 964 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12450 | 58 |
Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 | daisy@crovellbio.com | China | 5828 | 58 |
Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29798 | 60 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21668 | 55 |
Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1807 | 55 |
Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9332 | 55 |
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- Applications of 2,2,6,6-Tetramethylpiperidinooxy as a versatile compound
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View Lastest Price from TEMPO manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
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2024-08-23 | 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
|
US $12.00 / KG | 1KG | 99% | 200mt/year | Jinan Finer Chemical Co., Ltd | |
![]() |
2024-08-01 | 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
|
US $5.00-2.00 / KG | 1KG | 99% | 10000kg | Hebei Guanlang Biotechnology Co,.LTD | |
![]() |
2024-05-18 | 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
|
US $40.00 / kg | 1kg | 99% | 5000kg/week | Hebei Zhuanglai Chemical Trading Co.,Ltd |
-
- 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
- US $12.00 / KG
- 99%
- Jinan Finer Chemical Co., Ltd
-
- 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
- US $5.00-2.00 / KG
- 99%
- Hebei Guanlang Biotechnology Co,.LTD
-
- 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
- US $40.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
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