Description

Bis[2-(2,2,6,6-Tetramethylpiperidyl)Ethyl] [[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Butylmalonate is a high-performance, multifunctional hindered amine light stabilizer (HALS) and phenolic antioxidant. This compound is engineered to provide exceptional long-term thermal and UV stability to polymers, preventing degradation, discoloration, and loss of mechanical properties. It is an essential additive for manufacturers in the plastics, coatings, and synthetic fiber industries who require reliable protection for their products in demanding environments.

Application

• Polymer Stabilization: Primary use as a light and heat stabilizer in polyolefins (PP, PE), engineering plastics, and synthetic rubbers.
• Automotive Components: Protection for interior and exterior plastic parts, under-the-hood applications, and coatings against UV and thermal oxidative degradation.
• Industrial & Agricultural Films: Extends the service life of greenhouse films, mulch films, and protective packaging by inhibiting photo-oxidation.
• Coatings & Adhesives: Enhances the durability and color retention of industrial and architectural coatings, as well as adhesive formulations.
• Fibers & Textiles: Imparts UV stability to synthetic fibers used in outdoor textiles, geotextiles, and automotive interiors.
• Wire & Cable Insulation: Protects polymer insulation from degradation caused by heat and environmental exposure.

Basic Information

Item	Details
Product Name	Bis[2-(2,2,6,6-Tetramethylpiperidyl)Ethyl] [[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Butylmalonate
CAS No.	75568-92-2
Molecular Formula	C52H90N2O6
Molecular Weight	839.3 g/mol
Synonyms	Bis(1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonate; Bis(2,2,6,6-tetramethyl-4-piperidyl) [[3,5-di-tert-butyl-4-hydroxyphenyl]methyl]butylmalonate; Light Stabilizer 119; LS 119; HALS 119; Multifunctional HALS; Hindered Amine Light Stabilizer with Antioxidant Function; Tinuvin 119 (Trade Name)
EINECS	Contact for details

Quality Control

Our production of Bis[2-(2,2,6,6-Tetramethylpiperidyl)Ethyl] [[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Butylmalonate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and quality assurance for our global B2B clients.

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 prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	Contact for details
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Transmittance	≥ 95% (425 nm) ≥ 97% (500 nm)

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