TEMPO, free radical, 98+%

Description

CAS: 2564-83-2 | C9H18NO | 156.25 g/mol

TEMPO is used as a catalyst in organic synthesis and for the oxidation of primary alcohols to aldehydes. It finds use in the chemical industry for conversion of bisnoralcohol (a steroid) to bisnoraldehyde. It acts as a free radical scavenger, as a mediator in controlled radical polymerization and as a structural probe in electron spin resonance spectroscopy. Further, it is involved in the preparation of (S)-(+)-2-methylbutanal from (S)-(-)-2-methyl-1-butanol.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
TEMPO is used as a catalyst in organic synthesis and for the oxidation of primary alcohols to aldehydes. It finds use in the chemical industry for conversion of bisnoralcohol (a steroid) to bisnoraldehyde. It acts as a free radical scavenger, as a mediator in controlled radical polymerization and as a structural probe in electron spin resonance spectroscopy. Further, it is involved in the preparation of (S)-(+)-2-methylbutanal from (S)-(-)-2-methyl-1-butanol.

Solubility
Soluble in all organic solvents. Insoluble in water.

Notes
Store in a cool place. Incompatible withstrong oxidizing agents and strong acids.

Specifications

Chemical Identifiers

• CAS: 2564-83-2
• Molecular Formula: C9H18NO
• Molecular Weight (g/mol): 156.25
• MDL Number: MFCD00009599
• InChI Key: QYTDEUPAUMOIOP-UHFFFAOYSA-N
• Synonym: 2,2,6,6-Tetramethyl-1-piperidinyloxy, free radical
• IUPAC Name: (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl
• SMILES: CC1(C)CCCC(C)(C)N1[O]

• Melting Point: 31°C to 40°C
• Boiling Point: 193°C (decomposition)
• Flash Point: 67°C (152°F)
• Quantity: 1 g
• UN Number: UN3263
• Beilstein: 1422418
• Merck Index: 14,9140
• Solubility Information: Soluble in all organic solvents. Insoluble in water.
• Formula Weight: 156.25
• Percent Purity: ≥98%
• Chemical Name or Material: TEMPO, free radical

Safety and Handling

Hazard Category	H314-H335
Hazard Statement	GHS H Statement H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage.
Precautionary Statement	P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: CORROSIVE SOLID, BASIC, ORGANIC, N.O.S.
EINECSNumber	219-888-8
RTECSNumber	TN8991900
TSCA	Yes
Recommended Storage	Keep cold

SDS

RUO – Research Use Only