Description

2,2,6,6-Tetramethyl-4-Piperidinyl Stearate is a high-performance hindered amine light stabilizer (HALS) derivative. This compound is engineered to provide exceptional long-term thermal and UV stability to polymeric materials, preventing degradation and extending product lifespan. It is a critical additive for manufacturers in the plastics, coatings, and synthetic fiber industries seeking to enhance the durability of their products under demanding environmental conditions.

Application

• As a light and heat stabilizer in polyolefins such as polypropylene (PP) and polyethylene (PE) for automotive parts, agricultural films, and outdoor furniture.
• Providing UV protection in industrial and automotive coatings, lacquers, and paints to prevent chalking, gloss loss, and color fading.
• Enhancing the weathering resistance of engineering plastics and thermoplastic elastomers used in construction materials and consumer goods.
• Stabilizing adhesives, sealants, and synthetic fibers against oxidative degradation caused by processing and end-use environments.
• Used in masterbatch formulations for efficient dispersion and consistent stabilization performance in final polymer products.

Basic Information

Product Name	2,2,6,6-Tetramethyl-4-Piperidinyl Stearate
CAS No.	167078-06-0
Molecular Formula	C27H53NO2
Molecular Weight	423.72 g/mol
Synonyms	Stearic acid, 2,2,6,6-tetramethyl-4-piperidinyl ester; 4-Stearoyloxy-2,2,6,6-tetramethylpiperidine; HALS 770 Stearate; Tinuvin 770 Stearate; LS-770; Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate related monomeric HALS; UV-770; Light Stabilizer 770
EINECS	Contact for details

Quality Control

Our production of 2,2,6,6-Tetramethyl-4-Piperidinyl Stearate adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee consistency and support your quality assurance protocols.

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 remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	81 - 85 °C
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.