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Phenol, 4,4'-(1-methylethylidene)bis[2,6-dibromo-, polymer with carbonic dichloride, bis(2,4,6-tribromophenyl) ester

CAS 71342-77-3

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

Molecular structure of 71342-77-3
US productionCBI
Import value, 2024$397M
Top sourceSouth Korea 26%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 390740 · basket

EPA reports by year
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 390740, which covers 4 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 26%South KoreaDE 15%GermanyCA 13%CanadaMY 9%MalaysiaMX 9%Mexico
Domestic parents -- activity not disclosed (1)
St. Louis Group

Why It Matters

Sectors
TransportationConstructionPlastics & RubberPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 10 sectors as 1 functional role.

  • •Flame retardant in Asphalt Paving, Roofing, and Coating Materials ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Synthetic Rubber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Custom Compounding of Purchased ResinsProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Transportation Equipment ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in ConstructionProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Wood Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS71342-77-3
PubChem CIDNot recorded
DTXSIDDTXSID00872800
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Phenol, 4,4'-(1-methylethylidene)bis[2,6-dibromo-, polymer with carbonic dichloride, bis(2,4,6-tribromophenyl) ester (CAS 71342-77-3) https://chemicalindependence.com/chemical/71342-77-3/ EPA CompTox (DSSTox): DTXSID00872800. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID00872800 EPA Chemical Data Reporting: 71342-77-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 71342-77-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 390740 for CAS 71342-77-3. Reporting year: 2024. https://usatrade.census.gov/