Description

3,5-Di-tert-Butyl-4-Hydroxycinnamic Acid is a high-purity phenolic antioxidant intermediate widely recognized for its effectiveness in stabilizing polymers and other organic materials against oxidative degradation. Its molecular structure, featuring sterically hindered phenolic groups, makes it a critical precursor for synthesizing advanced light stabilizers and antioxidants. This compound is essential for manufacturers in the plastics, rubber, coatings, and specialty chemical industries seeking to enhance the longevity and performance of their products.

Application

• Primary Antioxidant Precursor: A key synthetic intermediate for manufacturing high-performance hindered phenol antioxidants (e.g., Irganox-type additives) used in polymer stabilization.
• Plastics & Polymer Additives: Imparts thermal and oxidative stability to polyolefins (PP, PE), PVC, engineering plastics, and synthetic fibers, preventing chain scission and discoloration.
• Rubber Industry: Used in the production of antidegradants for tires and industrial rubber goods to resist cracking and aging caused by heat and oxygen.
• Coatings & Adhesives: Enhances the durability and color retention of paints, varnishes, and adhesive formulations by inhibiting resin oxidation.
• Fuel & Lubricant Additives: Serves as a building block for antioxidants that prevent gum formation and acid generation in fuels and lubricating oils.
• Specialty Chemical Synthesis: A versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals requiring hindered phenol motifs.

Basic Information

Product Name	3,5-Di-tert-Butyl-4-Hydroxycinnamic Acid
CAS No.	22014-01-3
Molecular Formula	C17H24O3
Molecular Weight	276.37 g/mol
Synonyms	3,5-Bis(1,1-dimethylethyl)-4-hydroxybenzeneacrylic acid; 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)-2-propenoic acid; 4-Hydroxy-3,5-di-tert-butylcinnamic acid; DTBHC; Cinnamic acid, 3,5-di-tert-butyl-4-hydroxy-; Antioxidant 1790; 2-Propenoic acid, 3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-
EINECS	244-708-5

Quality Control

Our production of 3,5-Di-tert-Butyl-4-Hydroxycinnamic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to confirm identity, potency, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality system is designed to meet the rigorous demands of industrial and fine chemical synthesis.

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, sparks, and open flame. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190°C - 195°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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