Description

4-Hydroxy-3,5-Di-tert-Butyl-2,4-Cyclohexadien-1-One is a high-purity, hindered phenolic compound widely recognized for its role as a key synthetic intermediate and antioxidant precursor. This compound matters for its ability to impart stability and prevent oxidative degradation in sensitive formulations and materials. It is essential for industries including polymer manufacturing, specialty chemical synthesis, and advanced material science where high-performance additives are required.

Application

• Polymer Additive Synthesis: A crucial building block for manufacturing high-performance hindered phenol antioxidants used to stabilize plastics, rubbers, and synthetic fibers against thermal and oxidative degradation.
• Lubricant & Fuel Stabilizers: Serves as a key intermediate in producing additives that extend the shelf life and operational stability of industrial lubricants, greases, and fuels.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex organic molecules for pharmaceutical research and active pharmaceutical ingredient (API) development.
• Agrochemical Formulations: Employed in the production of stabilizers and intermediates for crop protection chemicals and pesticide formulations.
• Specialty Chemical Manufacturing: Acts as a versatile intermediate for synthesizing other fine chemicals, dyes, and photoinitiators.
• Research & Development: Used in academic and industrial R&D laboratories for studying antioxidant mechanisms and developing new stabilization technologies.

Basic Information

Product Name	4-Hydroxy-3,5-Di-tert-Butyl-2,4-Cyclohexadien-1-One
CAS No.	54965-43-4
Molecular Formula	C14H22O2
Molecular Weight	222.33 g/mol
Synonyms	2,4-Cyclohexadien-1-one, 4-hydroxy-3,5-bis(1,1-dimethylethyl)-; 3,5-Di-tert-butyl-4-hydroxy-2,5-cyclohexadien-1-one; 4-Hydroxy-3,5-di-tert-butyl-2,5-cyclohexadien-1-one; 2,6-Di-tert-butyl-1,4-benzoquinone methide?; 4-Hydroxy-3,5-di-tert-butyl-2,4-cyclohexadienone; DTBD; Hindered phenol intermediate; Antioxidant precursor 54965-43-4
EINECS	259-423-6

Quality Control

Our 4-Hydroxy-3,5-Di-tert-Butyl-2,4-Cyclohexadien-1-One is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use in sensitive applications. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request, providing full traceability and compliance support 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 controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber packaging during storage and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	190 - 195 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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