Description

3,5-Di-tert-Butylcatechol is a high-purity phenolic compound widely recognized as an effective polymerization inhibitor and antioxidant. Its primary value lies in stabilizing monomers like styrene, acrylates, and butadiene against premature, exothermic polymerization during storage, transport, and processing. This makes it an essential additive for manufacturers in the polymer, petrochemical, and specialty chemical industries who require reliable process safety and product shelf-life extension.

Application

• Polymerization Inhibitor: Primary use as a stabilizer for vinyl monomers (e.g., styrene, acrylic acid) and dienes to prevent hazardous self-polymerization during production and storage.
• Antioxidant in Fuels & Lubricants: Used as an additive in gasoline, jet fuels, and industrial lubricants to inhibit gum formation and oxidative degradation.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex antioxidants, light stabilizers (HALS), and pharmaceutical intermediates.
• Rubber & Elastomer Stabilizer: Imparts antioxidant properties to synthetic rubbers like SBR and polybutadiene, extending their service life.
• Adhesive & Coating Formulations: Prevents gelation and viscosity increase in unsaturated polyester resins and acrylic-based adhesives.
• Research & Development: Utilized in academic and industrial R&D for studying antioxidant mechanisms and developing new stabilization systems.

Basic Information

Product Name	3,5-Di-tert-Butylcatechol
CAS No.	1020-31-1
Molecular Formula	C14H22O2
Molecular Weight	222.32 g/mol
Synonyms	3,5-Di-tert-butyl-1,2-benzenediol; 3,5-Di-tert-butylpyrocatechol; DBPC; Di-tert-butylcatechol; 4,6-Di-tert-butylbenzene-1,2-diol; 3,5-DTBC; Inhibitor DTB; NSC 66487; Antioxidant DBPC
EINECS	213-813-4

Quality Control

Our 3,5-Di-tert-Butylcatechol is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high standards required for industrial and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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, well-ventilated area at room temperature (15-25°C). Due to its nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation of efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	98°C - 102°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.