2,5-Bis(2-methylbutan-2-yl)benzene-1,4-diol

CAS 79-74-3

U.S. production volumes are classified as confidential business information.

Molecular structure of 79-74-3
US productionCBI
Import value, 2024$72M
Top sourceIndia 30%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290729 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 290729, which covers 82 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 30%IndiaDE 19%GermanyCN 16%ChinaJP 11%JapanIT 7%Italy
Domestic parents -- activity not disclosed (1)
Si Group

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • •UV stabilizer in Plastics Material and Resin Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Plastics Material and Resin Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Synthetic Rubber Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Synthetic Rubber Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.35/gA2B Chem LLC
CountryUnited States
Pack$176.00 / 500 g
Purity93%
Vendors9 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS79-74-3
PubChem CID6610
DTXSIDDTXSID5044992
FormulaC16H26O2
Mol. Weight250.38 g/mol
SMILESCCC(C)(C)C1=CC(=C(C=C1O)C(C)(C)CC)O

Data Sources

Brief citations

2,5-Bis(2-methylbutan-2-yl)benzene-1,4-diol (CAS 79-74-3) https://chemicalindependence.com/chemical/79-74-3/ EPA CompTox (DSSTox): DTXSID5044992. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5044992 PubChem: 6610. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6610 EPA Chemical Data Reporting: 79-74-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 79-74-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290729 for CAS 79-74-3. Reporting year: 2024. https://usatrade.census.gov/