Description

Isooctyl 2-[4-[4,6-Bis[(1,1'-Biphenyl)-4-Yl]-1,3,5-Triazin-2-Yl]-3-Hydroxyphenoxy]Propanoate is a high-performance, sterically hindered phenolic-triazine compound designed for advanced material stabilization. This product matters because it offers exceptional resistance to thermal degradation and ultraviolet (UV) light, significantly extending the service life of sensitive polymers and coatings. It is primarily needed by formulators and manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the durability and color stability of their high-value products under demanding environmental conditions.

Application

• Polymer Stabilizer: As a highly effective light stabilizer (HALS synergist) and antioxidant in engineering plastics such as polycarbonate (PC), polyamide (PA), and thermoplastic polyurethanes (TPU).
• Coatings & Paints: For UV protection in automotive clear coats, industrial coatings, and high-performance architectural paints to prevent gloss loss, chalking, and yellowing.
• Adhesives & Sealants: To prevent thermal-oxidative degradation and maintain elasticity and adhesion properties in hot-melt and reactive adhesive systems.
• Synthetic Fibers: Incorporated into polypropylene (PP) and polyester fibers to improve weatherability and colorfastness for outdoor textiles and geotextiles.
• Photovoltaic Encapsulation: Used in ethylene-vinyl acetate (EVA) encapsulants for solar panels to protect against long-term UV exposure and thermal cycling.
• Lubricant & Fuel Additive: As an antioxidant additive in synthetic lubricants and industrial fluids to inhibit oxidation and sludge formation.

Basic Information

Product Name	Isooctyl 2-[4-[4,6-Bis[(1,1'-Biphenyl)-4-Yl]-1,3,5-Triazin-2-Yl]-3-Hydroxyphenoxy]Propanoate
CAS No.	204848-45-3
Molecular Formula	C55H51N3O4
Molecular Weight	818.02 g/mol
Synonyms	Isooctyl 3-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-tert-butyl-4-hydroxybenzenepropanoate; 2,4-Diphenyl-6-(2-hydroxy-4-isooctyloxyphenyl)-1,3,5-triazine; UV-234 (common industry designation); Tinuvin 234 (trade name); Phenol, 2-[4,6-bis(phenyl)-1,3,5-triazin-2-yl]-5-(octyloxy)-, 1-methylethyl ester; Light stabilizer 234; Bis(1,1'-biphenyl-4-yl)-[3-(isooctyloxy)-2-hydroxypropyl]triazine ester.
EINECS	Contact for details

Quality Control

Our production of Isooctyl 2-[4-[4,6-Bis[(1,1'-Biphenyl)-4-Yl]-1,3,5-Triazin-2-Yl]-3-Hydroxyphenoxy]Propanoate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing specific batch results are available upon request, supporting compliance with relevant industry and supply chain standards.

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 easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve efficacy. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	138 - 142 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.0%

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