TEMPO
- Product Name
- 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*
- Formula Weight
- 156.25
- MOL File
- 2564-83-2.mol
TEMPO Property
- 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)
- 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
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
H412Harmful to aquatic life with long lasting effects
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 214000
- Product name
- TEMPO
- Purity
- 98%
- Packaging
- 1g
- Price
- $28.2
- Updated
- 2024/03/01
- Product number
- 214000
- Product name
- TEMPO
- Purity
- 98%
- Packaging
- 5g
- Price
- $64.1
- Updated
- 2024/03/01
- Product number
- 8.14681
- Product name
- 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical)
- Purity
- for synthesis
- Packaging
- 5G
- Price
- $108
- Updated
- 2022/05/15
- Product number
- 8.14681
- Product name
- 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical)
- Purity
- for synthesis
- Packaging
- 25g
- Price
- $201
- Updated
- 2022/05/15
- Product number
- T1560
- Product name
- 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $45
- Updated
- 2024/03/01
TEMPO Chemical Properties,Usage,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
Preparation Products
TEMPO Suppliers
- Tel
- --
- Fax
- --
- biuro@pol-aura.pl
- Country
- Poland
- ProdList
- 1453
- Advantage
- 58
- Tel
- --
- Fax
- --
- tmiskiewicz@ichf.edu.pl
- Country
- Poland
- ProdList
- 87
- Advantage
- 58
- Tel
- --
- Fax
- --
- raczko@ichf.edu.pl
- Country
- Poland
- ProdList
- 146
- Advantage
- 80
View Lastest Price from TEMPO manufacturers
- Product
- 2,2,6,6-Tetramethylpiperidinooxy 2564-83-2
- Price
- US $12.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200mt/year
- Release date
- 2022-12-14
- Product
- 2,2,6,6-Tetramethylpiperidinooxy 2564-83-2
- Price
- US $40.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000kg/week
- Release date
- 2024-05-17
- Product
- 2,2,6,6-Tetramethylpiperidinooxy 2564-83-2
- Price
- US $0.00-0.00/KG
- Min. Order
- 1g
- Purity
- 99%
- Supply Ability
- 2000tons
- Release date
- 2019-12-31