Description

4-(1-Naphthoyloxy)-2,2,6,6-Tetramethylpiperidine-1-Oxyl is a specialized nitroxyl radical compound, a key intermediate in advanced polymer chemistry and materials science. Its primary value lies in its role as a stable radical, making it an essential component for the synthesis of hindered amine light stabilizers (HALS) and as a mediator in controlled radical polymerization processes. This high-purity intermediate is critical for manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the durability and performance of their products.

Application

• Hindered Amine Light Stabilizer (HALS) Synthesis: A crucial building block for manufacturing high-performance HALS additives used to protect polymers from UV degradation.
• Controlled/Living Radical Polymerization: Acts as a mediator or initiator in techniques such as Nitroxide-Mediated Polymerization (NMP) for creating polymers with precise architectures.
• Polymer Modification: Used to introduce stable nitroxyl functionalities into polymer chains to impart specific properties like enhanced stability or as sites for further chemical reaction.
• Antioxidant Intermediate: Serves as a precursor in the production of antioxidants for plastics and elastomers, preventing thermal and oxidative degradation.
• Advanced Material Research: Employed in R&D for developing novel organic electronic materials, spin labels for biochemistry, and other functional materials.
• Coatings and Adhesives: Incorporated into formulations to improve the long-term weatherability and color retention of industrial and automotive coatings.

Basic Information

Product Name	4-(1-Naphthoyloxy)-2,2,6,6-Tetramethylpiperidine-1-Oxyl
CAS No.	95676-89-4
Molecular Formula	C20H24NO3
Molecular Weight	326.41 g/mol
Synonyms	4-(1-Naphthoyloxy)-TEMPO; 4-(1-Naphthoyloxy)-2,2,6,6-tetramethylpiperidin-1-oxyl; 1-Oxyl-2,2,6,6-tetramethyl-4-piperidyl 1-naphthoate; 4-(1-Naphthoyloxy)-TEMPO radical; Naphthoyloxy-TEMPO; 4-(1-Naphthoate)-TEMPO; 2,2,6,6-Tetramethyl-4-(1-naphthoyloxy)piperidine-1-oxyl; TEMPO-1-naphthoate
EINECS	Contact for details

Quality Control

Our production of 4-(1-Naphthoyloxy)-2,2,6,6-Tetramethylpiperidine-1-Oxyl adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. Certificates of Analysis (COA) detailing all critical parameters are provided and available upon request, supporting compliance in regulated supply chains.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong reducing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.