NAVIGATION


4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical

Catalog NumberACM37149181-2

CAS Number37149-18-1

CategoryOrganic Radicals; Battery Materials; Electronic Materials; Polymerization Reagents

4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical
Synonyms
4-Carboxy-TEMPO Free Radical
Molecular Weight
200.26
Molecular Formula
C10H18NO3
Canonical SMILES
CC1(CC(CC(N1[O])(C)C)C(=O)O)C
InChI
InChI=1S/C10H18NO3/c1-9(2)5-7(8(12)13)6-10(3,4)11(9)14/h7H,5-6H2,1-4H3,(H,12,13)
InChI Key
CYQGCJQJIOARKD-UHFFFAOYSA-N
Melting Point
178 °C
Purity
>97.0%(GC)(T)
Appearance
Light yellow to Brown powder to crystal
Application
4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical serves as a versatile compound with several key applications. It functions as a potent catalyst for the oxidation of regenerated cellulose, such as viscose rayon, into cellouronic acid. This compound is a derivative of TEMPO, characterized by a carboxy group at the fourth position, making it a significant member of the aminoxyl class. Its immobilization with 3-aminopropylsilane on mesoporous silica creates a robust heterogeneous catalytic system, suitable for a variety of oxidation reactions. Additionally, 4-Carboxy-TEMPO plays roles beyond catalysis, acting as a radical scavenger, an MRI contrast agent, and a spin label, highlighting its multifunctional nature and broad utility in different scientific and industrial applications.
Storage
Store under inert gas
Complexity
230
Covalently-Bonded Unit Count
1
Exact Mass
200.128668g/mol
Formal Charge
0
Hazard Statements
H315 : Causes skin irritation.H319 : Causes serious eye irritation.
Heavy Atom Count
14
MDL Number
MFCD00134569
MeSH Entry Terms
1-oxyl-4-carboxyl-2,2,6,6-tetramethylpiperidine;4-carboxyl-2,2,6,6-tetramethylpiperidin-1-yloxyl;4-carboxyl-2,2,6,6-tetramethylpiperidinoxyl;CTEMPO;TCA meglumine;tempo carboxylate;tempo carboxylic acid
Monoisotopic Mass
200.128668g/mol
Precautionary Statements
P264 : Wash skin thoroughly after handling.P280 : Wear protective gloves/ eye protection/ face protection.P337 + P313 : If eye irritation persists: Get medical advice/ attention.P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P302 + P352 : IF ON SKIN: Wash with plenty of soap and water.P332 + P313 : If skin irritation occurs: Get medical advice/ attention.P362 : Take off contaminated clothing and wash before reuse.
Rotatable Bond Count
1
Signal Word
Warning
XLogP3
-1.3
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