2,2,6,6-Tetramethylpiperidine-N-oxyl 

CAS name
2,2,6,6-Tetramethyl-1-piperidinyloxy 
CAS number
2564-83-2 
Formula
C9H18NO 
Structure

Product groups
Triacetonamine
Process steps
Monomer Production
Markets
Pharma & Healthcare
Fields
for Plastic
Effects
Heat stabilizer
Printing, Paint & Coating - Coatings
EINECS
219-888-8 
TSCA
listed 
Status
Code
TEMPO 
Synonyms
2,2,6,6-Tetramethyl-1-piperidinyloxyl
2,2,6,6-Tetrametylpiperidin-N-oxyl
2,2,6,6-Tetrametylpiperidine-N-oxyl, free radical
TEMPO
TEMPO, free radical
Triacetonamine
2,2,6,6-Tetramethylpiperidine-1-oxyl (free radical)
2,2,6,6-Tetramethylpiperidineoxide
2,2,6,6-Tetrametylpiperidine-N-oxyl, free radical
Triacetonamines
Molecular weight
156.2  g/mol
Purity
min. 98.0  %
Melting point
37.0  °C
Delivery form
solid 
Description
Oxidation Catalyst for selective oxidations.
Polymerization control agent
Productinformation (eng.)
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Productinformation (ger.)
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Productinformation (US)
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Contacts for technical inquiries:
Dr. Michael Keup

Marketing & technical contact
Evonik Performance Materials GmbH
Paul-Baumann-Strasse 1
45764 Marl
Germany

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