Description

Bis(1,2,2,6,6-Pentamethyl-4-Piperidyl) Sebacate is a high-performance hindered amine light stabilizer (HALS) widely recognized for its exceptional effectiveness in protecting polymers from UV-induced degradation. This compound matters because it provides long-term thermal and light stability, significantly extending the service life and maintaining the aesthetic properties of finished products. It is a critical additive for manufacturers in the plastics, coatings, and synthetic fiber industries who require reliable protection against photo-oxidation for their high-value materials. Its compatibility with a broad range of polymer systems makes it a versatile and essential component in advanced material formulations.

Application

• Polymer Stabilization: Primary function as a highly effective hindered amine light stabilizer (HALS) in polyolefins (PP, PE), engineering plastics, and styrenics.
• Automotive Components: Protection of interior and exterior plastic parts, such as bumpers, dashboards, and trim, from fading and embrittlement caused by sunlight.
• Industrial and Agricultural Films: Extending the durability of greenhouse films, mulch films, and protective tarpaulins against prolonged UV exposure.
• Coatings and Paints: Enhancing the weatherability and gloss retention of industrial and automotive coatings.
• Synthetic Fibers and Textiles: Preventing strength loss and color change in polypropylene and polyethylene fibers used in outdoor fabrics and geotextiles.
• Adhesives and Sealants: Improving the long-term performance of polymer-based adhesives and sealants exposed to outdoor conditions.

Basic Information

Item	Details
Product Name	Bis(1,2,2,6,6-Pentamethyl-4-Piperidyl) Sebacate
CAS No.	41556-26-7
Molecular Formula	C28H52N2O4
Molecular Weight	480.73 g/mol
Synonyms	Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate; Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate; Light Stabilizer 770; LS 770; HALS 770; Tinuvin 770; Lowilite 77; UV-770; Sebacic acid bis(2,2,6,6-tetramethyl-4-piperidyl) ester; 4-Piperidinyl, 1,2,2,6,6-pentamethyl-, sebacate
EINECS	255-426-1

Quality Control

Our production of Bis(1,2,2,6,6-Pentamethyl-4-Piperidyl) Sebacate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Every lot undergoes rigorous analytical testing, including assay, identification, and impurity profile analysis, to meet industry specifications for light stabilizer additives. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request to support your quality assurance and regulatory needs.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Melting Point	81 - 85 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%
Transmittance (425nm)	≥ 95%
Transmittance (500nm)	≥ 97%

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