4-tert-butylcatechol

4-tert-butylcatechol (CAS 98-29-3), commonly known as TBC or Synox TBC, is an industrial antioxidant and polymerization inhibitor used in polymer, monomer, and chemical manufacturing.

Where is 4-tert-butylcatechol used?

• Vinyl monomers: inhibitor of choice for stabilisation
• Styrene, butadiene, and acrylates: prevents premature crosslinking and oxidative degradation during bulk storage and pipeline transfer
• Coatings and adhesives: extends shelf life by suppressing oxidative cure before application
• Rubber and elastomers: controls premature vulcanization and maintains processability
• Lubricants and metalworking fluids: antioxidant at lower concentrations, protecting base stocks from oxidative breakdown under high-temperature service
• It prevents premature crosslinking and oxidative degradation during storage, transport, and processing of reactive chemical systems.

Commercial specifications

• Bulk packaging in fiber drums and IBCs; smaller quantities for laboratory and specialty use