Description

2,5-Ditertoctylhydroquinone is a high-purity, hindered phenolic compound primarily used as a polymerization inhibitor and antioxidant. This specialized chemical is critical for stabilizing monomers and other sensitive materials against premature oxidation and thermal degradation during processing and storage. It is an essential additive for manufacturers in the polymer, petrochemical, and specialty chemical industries who require reliable, long-term stabilization of their products.

Application

• Polymerization Inhibitor: Used to prevent premature polymerization of vinyl monomers like styrene, acrylates, and butadiene during production, purification, and storage.
• Antioxidant Stabilizer: Protects fuels, lubricants, plastics, and synthetic rubbers from oxidative degradation, extending product shelf life and performance.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex antioxidants, light stabilizers, and other specialty additives.
• Petrochemical Processing: Added to refinery streams and olefin fractions to prevent gum formation and fouling in distillation columns and pipelines.
• Adhesive & Resin Formulation: Enhances the stability and pot life of unsaturated polyester resins and other reactive adhesive systems.

Basic Information

Product Name	2,5-Ditertoctylhydroquinone
CAS No.	72930-99-5
Molecular Formula	C22H38O2
Molecular Weight	334.54 g/mol
Synonyms	2,5-Bis(1,1,3,3-tetramethylbutyl)hydroquinone; 2,5-Di-tert-octylhydroquinone; 2,5-Di(1,1,3,3-tetramethylbutyl)benzene-1,4-diol; DTQ; Hydroquinone, 2,5-bis(1,1,3,3-tetramethylbutyl)-; Antioxidant DTQ; Polymerization Inhibitor 72930-99-5
EINECS	Contact for details

Quality Control

Our 2,5-Ditertoctylhydroquinone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing specifications and test results is provided with every shipment. We support compliance with relevant industry standards and can tailor specifications to meet specific customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen. 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	118 - 122 °C
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.