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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
Tanan;TEMPO;Tanane;TEMPO,98%;TEMPO, free radica;TEMPO, FREE RADICAL;TEMPO Oxidation Agent;Tetramethylpiperidinooxy;TEMPO, free radical, 98+%;2,2,6,6-Tetramethylpiperidoxyl
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. 
2-8°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
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
Precautionary statements:
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P310 Immediately call a POISON CENTER or doctor/physician.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

2,2,6,6-Tetramethylpiperidinooxy price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 214000 TEMPO 98% 2564-83-2 1g $20.7 2018-11-13 Buy
Sigma-Aldrich 214000 TEMPO 98% 2564-83-2 5g $46.7 2018-11-13 Buy
TCI Chemical T1560 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical >98.0%(GC)(T) 2564-83-2 5g $39 2018-11-22 Buy
TCI Chemical T1560 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical >98.0%(GC)(T) 2564-83-2 25g $115 2018-11-22 Buy
Alfa Aesar A12733 TEMPO, free radical, 98+% 2564-83-2 1g $19.6 2018-11-13 Buy

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

Chemical Properties

orange crystals or powder

Uses

TEMPO 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, a catalyst and in polymerization mediation.

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


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2,2,6,6-Tetramethylpiperidinooxy Spectrum


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