Description

Bis(2,2,6,6-Tetramethyl-4-Piperidyl) Sebacate CAS NO 52829-07-9 is a high-performance hindered amine light stabilizer (HALS) of the monomeric type. This compound is critical for protecting polymers from degradation caused by UV radiation and thermal oxidation, thereby significantly extending the service life of finished products. It is an essential additive for manufacturers in the plastics, coatings, and synthetic fiber industries who require reliable long-term stabilization for their materials.

Application

This HALS compound is a versatile additive designed for demanding stabilization applications across multiple industries.

• Polyolefin Stabilization: Primary use in protecting polypropylene (PP) and polyethylene (PE) films, fibers, and molded articles from UV-induced embrittlement and color change.
• Automotive & Industrial Coatings: Enhances the durability and gloss retention of automotive clear coats, industrial paints, and powder coatings exposed to outdoor weathering.
• Engineering Plastics: Provides critical light stability for polyamides (nylon), polyacetals, and other engineering thermoplastics used in automotive components and outdoor applications.
• Adhesives & Sealants: Prevents the degradation of polymer-based adhesives and sealants, maintaining elasticity and adhesion strength over time.
• Agricultural Films: Extends the functional lifespan of greenhouse films, mulch films, and silage covers by mitigating solar degradation.
• Synthetic Fibers: Protects polyolefin and polyamide fibers used in outdoor textiles, geotextiles, and artificial turf from strength loss and fading.

Basic Information

Product Name	Bis(2,2,6,6-Tetramethyl-4-Piperidyl) Sebacate
CAS No.	52829-07-9
Molecular Formula	C28H52N2O4
Molecular Weight	480.73 g/mol
Synonyms	Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate; Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate; Sebacic acid bis(2,2,6,6-tetramethyl-4-piperidyl) ester; Tinuvin 770; LS-770; Light Stabilizer 770; HALS 770; Low molecular weight HALS; Monomeric hindered amine light stabilizer.
EINECS	258-207-9

Quality Control

Our production of Bis(2,2,6,6-Tetramethyl-4-Piperidyl) Sebacate adheres to a strict quality management system. Every batch is analyzed to ensure it meets precise specifications for purity, color, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request. We support compliance with relevant global regulatory frameworks for polymer additives.

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 heat sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 99.0%
Melting Point	81 - 85 °C
Volatile Matter	≤ 0.5%
Ash Content	≤ 0.1%
Transmittance (425 nm)	≥ 95.0%
Transmittance (500 nm)	≥ 97.0%

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