TEMPO CAS# 2564-83-2

CAS Number:2564-83-2
Chemical Formula: C9H18NO*
Synonyms:

2,2,6,6-Tetramethylpiperidine 1-oxide
2,2,6,6-Tetramethylpiperidin-1-oxyl
2,2',6,6'-Tetramethylpiperidin-1-oxyl

Appearance: Yellow to green Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

TEMPO CAS#2564-83-2

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.

TEMPO Chemical 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)
Fp	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 Information

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

Product Application of TEMPO CAS#2564-83-2

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.

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