Description

3,5-Di-tert-Butyl-4-Hydroxybenzyl Acrylate is a specialized hindered phenol acrylate monomer, valued for its dual functionality as a polymerizable unit and a radical scavenger. This compound is engineered to impart enhanced thermal stability and antioxidant properties to polymer matrices during and after synthesis. It is primarily utilized by formulators and polymer chemists in the plastics, coatings, and adhesives industries seeking to develop high-performance, long-lasting materials.

Application

• Polymer Additive: Acts as a reactive antioxidant and stabilizer in the production of polyolefins (PP, PE), PVC, and engineering plastics to prevent thermal and oxidative degradation.
• UV-Curable Coatings & Inks: Incorporated as a functional monomer to enhance the weatherability and longevity of coatings, inks, and adhesives that cure under UV light.
• Rubber Industry: Used as an anti-aging agent in synthetic rubbers and elastomers to maintain flexibility and tensile strength over time.
• Adhesives & Sealants: Improves the thermal-oxidative stability of acrylic and other polymer-based adhesive formulations.
• Lubricant & Fuel Additive: Serves as an antioxidant component in synthetic lubricants and industrial fuels to inhibit gum formation and viscosity increase.
• Specialty Monomer for Copolymers: Employed in the synthesis of custom acrylic copolymers designed for high-temperature or outdoor applications.

Basic Information

Product Name	3,5-Di-tert-Butyl-4-Hydroxybenzyl Acrylate
CAS No.	20858-69-9
Molecular Formula	C18H26O3
Molecular Weight	290.40 g/mol
Synonyms	Acrylic Acid 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxybenzyl Ester; 4-Hydroxy-3,5-di-tert-butylbenzyl Acrylate; DTBBHA; Antioxidant Acrylate Monomer; 2-Propenoic Acid, (3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl)methyl Ester; Benzyl Acrylate, 3,5-di-tert-butyl-4-hydroxy-; (4-Hydroxy-3,5-di-tert-butylbenzyl) Acrylate
EINECS	244-087-4

Quality Control

Our production of 3,5-Di-tert-Butyl-4-Hydroxybenzyl Acrylate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC, GC, and NMR. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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/59-77°F). This material is light-sensitive and easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve efficacy. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 99 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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