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2,2,6,6-Tetramethylpiperidinooxy

2,2,6,6-Tetramethylpiperidinooxy
2,2,6,6-Tetramethylpiperidinooxy structure
CAS No.
2564-83-2
Chemical Name:
2,2,6,6-Tetramethylpiperidinooxy
Synonyms
TEPO;TEMPO;Tanan;Tanane;TEMPO,98%;TEMPO, free radica;TEMPO, FREE RADICAL;TEMPO Oxidation Agent;Tetramethylpiperidinooxy;TEMPO, free radical, 98+%
CBNumber:
CB6309451
Molecular Formula:
C9H18NO*
Formula Weight:
156.25
MOL File:
2564-83-2.mol

2,2,6,6-Tetramethylpiperidinooxy Properties

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  H318-H314
Precautionary statements  P260h-P301+P330+P331-P303+P361+P353-P405-P501a-P280-P305+P351+P338-P310
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

2,2,6,6-Tetramethylpiperidinooxy price More Price(50)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 214000 TEMPO 98% 2564-83-2 1g $22.5 2021-12-16 Buy
Sigma-Aldrich 214000 TEMPO 98% 2564-83-2 5g $51.3 2021-12-16 Buy
Sigma-Aldrich 8.14681 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical) for synthesis 2564-83-2 5 g $94.35 2021-12-16 Buy
Sigma-Aldrich 8.14681 2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical) for synthesis 2564-83-2 25 g $176.67 2021-12-16 Buy
TCI Chemical T1560 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical >98.0%(GC)(T) 2564-83-2 5g $42 2021-12-16 Buy

2,2,6,6-Tetramethylpiperidinooxy Chemical Properties,Uses,Production

Chemical Properties

orange crystals or powder

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].

2,2,6,6-Tetramethylpiperidinooxy Preparation Products And Raw materials

Raw materials

Preparation Products


2,2,6,6-Tetramethylpiperidinooxy Suppliers

Global( 467)Suppliers
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+86-371-66670886
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0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
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+8618017249410 +86-021-57951555
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View Lastest Price from 2,2,6,6-Tetramethylpiperidinooxy manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-12-01 2, 2, 6, 6-Tetramethylpiperidinooxy
2564-83-2
US $1.90 / KG 1KG 99% 10 ton Hebei Crovell Biotech Co Ltd
2021-07-20 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
US $0.00-0.00 / KG 1g 99% 2000tons Shaanxi Dideu Medichem Co. Ltd
2021-07-13 2,2,6,6-Tetramethylpiperidinooxy
2564-83-2
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

2,2,6,6-Tetramethylpiperidinooxy Spectrum


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