Description

2,5-Di-tert-Butylhydroquinone (CAS NO 88-58-4) is a high-performance phenolic antioxidant and polymerization inhibitor. This compound is critical for preventing premature degradation and oxidative damage in sensitive materials, thereby extending product shelf life and maintaining performance integrity. It is an essential raw material for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable stabilization for their formulations.

Application

• Polymer Stabilizer: Primary antioxidant for polyolefins (e.g., polyethylene, polypropylene) and other polymers to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Antiozonant and antioxidant in synthetic rubber production (e.g., SBR, NBR) to enhance durability and prevent cracking.
• Fuel & Lubricant Additive: Inhibits gum formation and oxidation in gasoline, jet fuels, and industrial lubricants, improving stability.
• Chemical Intermediate: Used in the synthesis of more complex antioxidants, UV stabilizers, and specialty chemicals.
• Adhesives & Sealants: Protects adhesive formulations from oxidative cross-linking and loss of tack, ensuring consistent performance.
• Coating Resins: Prevents gelation and viscosity increase in unsaturated polyester resins and alkyd coatings during storage.

Basic Information

Product Name	2,5-Di-tert-Butylhydroquinone
CAS No.	88-58-4
Molecular Formula	C14H22O2
Molecular Weight	222.33 g/mol
Synonyms	2,5-Di-tert-butyl-1,4-benzenediol; 2,5-Di-tert-butylhydroquinone; DBHQ; 2,5-DTBHQ; 2,5-Di-tert-butylquinol; 1,4-Benzenediol, 2,5-bis(1,1-dimethylethyl)-; 2,5-Bis(tert-butyl)hydroquinone; Antioxidant DBHQ
EINECS	201-841-8

Quality Control

Our 2,5-Di-tert-Butylhydroquinone is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) documenting assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and compliance.

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. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5 %
Melting Point	218 - 222 °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.