Description

[1,4-Piperazinediylbis[Carbonylimino(2,2,6,6-Tetramethyl-4,1-Piperidinediyloxy)]]Radical is a high-performance hindered amine light stabilizer (HALS) and nitroxyl radical compound. It is a critical additive for protecting polymers and other materials from degradation caused by thermal processing and long-term exposure to ultraviolet (UV) light and oxygen. This product is essential for formulators and manufacturers in the plastics, coatings, and specialty chemicals industries seeking to enhance the durability and lifespan of their products.

Application

• Polymer Stabilization: Primary use as a highly effective light and heat stabilizer in polyolefins (PP, PE), engineering plastics, and synthetic fibers to prevent photo-oxidative degradation.
• Coatings and Paints: Protects automotive, industrial, and architectural coatings from chalking, gloss loss, and color fading induced by UV radiation.
• Adhesives and Sealants: Extends the service life of adhesive films and sealant formulations exposed to outdoor conditions.
• Masterbatch Production: A key active component in concentrate form for easy and uniform dispersion into various polymer matrices during compounding.
• Synthetic Rubber: Improves the aging resistance of elastomers used in automotive parts, cables, and other demanding applications.
• Polymer Synthesis & Modification: Serves as a mediator in controlled radical polymerization processes (e.g., Nitroxide-Mediated Polymerization - NMP) for producing polymers with tailored architectures.
• Antioxidant Synergist: Works in combination with primary antioxidants (e.g., phenolics, phosphites) to provide comprehensive stabilization against thermal and oxidative stress.

Basic Information

Product Name	[1,4-Piperazinediylbis[Carbonylimino(2,2,6,6-Tetramethyl-4,1-Piperidinediyloxy)]]Radical
CAS No.	87625-61-4
Molecular Formula	C30H52N6O6
Molecular Weight	592.77 g/mol
Synonyms	Bis(2,2,6,6-tetramethyl-4-piperidinyl-1-oxyl) sebacate; Bis(1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl) sebacate; LS-770; Light Stabilizer 770; Tinuvin 770; Hostavin N 20; 1,4-Piperazinediylbis(carbonylimino(2,2,6,6-tetramethyl-4,1-piperidinediyloxy)) radical; 4,4'-(1,4-Piperazinediyl)bis(1-oxyl-2,2,6,6-tetramethylpiperidine)
EINECS	Contact for details

Quality Control

Our production of [1,4-Piperazinediylbis[Carbonylimino(2,2,6,6-Tetramethyl-4,1-Piperidinediyloxy)]]Radical adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including assay (HPLC), melting point determination, and loss on drying, to ensure it meets precise specifications for purity and performance. Certificates of Analysis (COA) documenting these results are provided with each shipment to guarantee traceability and compliance with your quality requirements.

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). Due to its light-sensitive nature and propensity for oxidation, prolonged exposure to direct light, heat, or air should be avoided to maintain product efficacy and shelf life.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Melting Point	80 - 85 °C
Assay (HPLC)	≥ 98.0 %
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %

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