4-Hydroxy- 2,2,6,6-tetramethylpiperidine-N-oxyl 

CAS name
1-Piperidinyloxy, 4-hydroxy-2,2,6,6-tetramethyl- 
CAS number
2226-96-2 
Formula
C9H18NO2 
Structure

Product groups
Triacetonamine
Process steps
Monomer Production
Markets
Adhesives & Sealants
Metal, Mining, Oil & Gas
Plastics
Printing
Pulp, Paper & Packaging
Fields
for Plastic
Effects
Anti-fouling agent
Stabilizer
EINECS
218-760-9 
TSCA
listed 
Status
Code
Hydroxy-TEMPO 
Synonyms
Piperidinooxy, 4-hydroxy-2,2,6,6-tetramethyl-
1-Oxyl-2,2,6,6-tetramethyl-4-piperidinol
2,2,6,6-Tetramethyl-4-hydroxy-1-piperidinyloxy radical
2,2,6,6-Tetramethyl-4-hydroxypiperidin-1-oxyl
2,2,6,6-Tetramethyl-4-hydroxypiperidine 1-oxide radical
2,2,6,6-Tetramethyl-4-hydroxypiperidine-1-oxyl
2,2,6,6-Tetramethyl-4-hydroxypiperidinooxy
2,2,6,6-Tetramethyl-4-hydroxypiperidinooxy radical
2,2,6,6-Tetramethyl-4-hydroxypiperidinyloxy radical
2,2,6,6-Tetramethyl-4-hydroxypiperidinyloxyl radical
2,2,6,6-Tetramethyl-4-hydroxypiperidyl 1-oxyl
2,2,6,6-Tetramethyl-4-oxypiperidine-1-oxyl
2,2,6,6-Tetramethyl-4-piperidinol 1-oxide
2,2,6,6-Tetramethyl-4-piperidinol 1-oxyl
2,2,6,6-Tetramethyl-4-piperidinol N-oxyl
2,2,6,6-Tetramethyl-4-piperidinol nitroxide
2,2,6,6-Tetramethyl-4-piperidinol-1-oxy
2,2,6,6-Tetramethylpiperidine-N-oxyl-4-ol
2,2,6,6-Tetramethylpiperidinol-4-oxyl-1
4-Hydroxy-2,2,6,6-tetramethyl-1-piperidinoxy
4-Hydroxy-2,2,6,6-tetramethyl-1-piperidinoxyl
4-Hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy
4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidinooxy
4-Hydroxy-2,2,6,6-tetramethylpiperidinoxy
4-Hydroxy-2,2,6,6-tetramethylpiperidinoxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidinyl-1-oxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidinyl-N-oxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidyl-1-oxyl
4-hydroxy-TEMPO
4-Oxypiperidol
HTEMPO
HyTEMPO
Tempo OH
Tetramethylpiperidinol N-oxyl
4-Hydroxy-2,2,6,6-tetramethylpiperidiynloxy
4-Hydroxy tempo, free radical
4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (free radical)
4-Hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl (Hydroxy-TEMPO)
Molecular weight
172.25  g/mol
Purity
min. 97.0 (amount of oxidized TAA-OL )  %
Melting point
approx. 70  °C
Delivery form
solid, flakes 
Productinformation (eng.)
Show 
Productinformation (ger.)
not yet available 
Productinformation (US)
not yet available 
Contacts for technical inquiries:
Mr. Oliver Erpeldinger

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