Description

2(3H)-Benzofuranone, 3-[2-(Acetyloxy)-5-(1,1,3,3-Tetramethylbutyl)Phenyl]-5-(1,1,3,3-Tetramethylbutyl)- is a specialized organic compound belonging to the benzofuranone chemical class, characterized by its two bulky tert-octyl (1,1,3,3-tetramethylbutyl) substituents. This compound matters as a high-performance light stabilizer and antioxidant intermediate, crucial for protecting polymers and coatings from degradation caused by UV radiation and thermal oxidation. It is primarily needed by manufacturers in the plastics, synthetic resins, and high-durability coatings industries seeking to enhance the longevity and performance of their products.

Application

• Polymer Additive: Serves as a key intermediate in the synthesis of advanced Hindered Amine Light Stabilizers (HALS) for polyolefins (PP, PE), engineering plastics, and synthetic fibers.
• Coatings Industry: Used in the formulation of UV-resistant automotive coatings, industrial paints, and wood finishes to prevent yellowing and loss of gloss.
• Adhesives and Sealants: Incorporated to improve the weatherability and long-term stability of high-performance adhesive systems.
• Advanced Material Research: Acts as a building block in organic synthesis for developing novel stabilizers and functional materials with tailored properties.

Basic Information

Product Name	2(3H)-Benzofuranone, 3-[2-(Acetyloxy)-5-(1,1,3,3-Tetramethylbutyl)Phenyl]-5-(1,1,3,3-Tetramethylbutyl)-
CAS No.	216698-07-6
Molecular Formula	C31H42O4
Molecular Weight	478.67 g/mol
Synonyms	3,5-Bis(1,1,3,3-tetramethylbutyl)-2-hydroxybenzophenone acetate; 2-Hydroxy-3,5-di-tert-octylbenzophenone acetate; Benzophenone, 2-(acetyloxy)-3,5-bis(1,1,3,3-tetramethylbutyl)-; UV-384; Light Stabilizer Intermediate; 3,5-Di-tert-octyl-2-hydroxybenzophenone acetate; 2-Acetoxy-3,5-di-tert-octylbenzophenone
EINECS	Contact for details

Quality Control

Our production of this high-purity intermediate adheres to strict quality management systems. Every batch is analyzed using advanced techniques including HPLC, GC, and NMR to ensure consistent chemical identity and purity. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain efficacy. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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