1,3-Benzenedicarbonyl dichloride, polymer with 1,4-benzenedicarbonyl dichloride, carbonic dichloride and 4,4'-(1-methylethylidene)bis[phenol]
CAS 71519-80-7
EPA exempts this chemical from its production survey.
Why supply is unknownProduction is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 390740, 390799 · basket
These shares come from HS customs code 390740, 390799, which covers 21 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Singapore
- Portugal
- Greece
- India
- Turkey
- Poland
- Brazil
- Sweden
- Ireland
- United Arab Emirates
- Hong Kong
- Colombia
- Vietnam
- Norway
- Czech Republic
- Jordan
- Saudi Arabia
- Slovenia
- Costa Rica
- Finland
- Romania
- Egypt
- Hungary
- Lithuania
- Philippines
- Bulgaria
- Denmark
- South Africa
- El Salvador
- Estonia
- Honduras
- Latvia
- Pakistan
- Georgia
- Serbia
- Australia
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
1,3-Benzenedicarbonyl dichloride, polymer with 1,4-benzenedicarbonyl dichloride, carbonic dichloride and 4,4'-(1-methylethylidene)bis[phenol] (CAS 71519-80-7) https://chemicalindependence.com/chemical/71519-80-7/ EPA TSCA Inventory: CAS 71519-80-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 390740,390799 for CAS 71519-80-7. Reporting year: 2024. https://usatrade.census.gov/