Terephthalic acid
CAS 100-21-0
U.S. production volumes are classified as confidential business information.
US productionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Import value, 2024$792M
Top sourceCanada 62%
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.
Where It Comes From
Customs basis: HS 291736 · exact
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
Source Countries
Country of origin for US imports, from Census customs data (2024).
CA 62%CanadaMX 20%MexicoKR 18%South Korea
- Belgium
- Taiwan
- Finland
- India
- Poland
- China
EPA-registered manufacturers (6)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Alfa Sab De Cv · MX Mexico
Indorama Netherlands Bv · NL Netherlands
Allnex Usa
Alpek Polyester Usa
Indorama Ventures Usa Holdings
Show all 6
Soyventis North America
Domestic parents -- activity not disclosed (12)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Ashland
BP
Catalynt Solutions
Eastman Chemical
Flint Cps Inks North America
Show all 12
Icc Industries
Ineos Enterprises Us Hold
Ineos Us Chemicals
Koch Industries
Polynt Composites Usa
Shakespeare Company Llc Dba Jarden Applied Materials
Silver Fern Chemical
EPA-registered importers (12)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Huafon Group · CN China
Posco Holdings · KR South Korea
Toray Industries · JP Japan
Aoc
Show all 12
Apg Polytech
Basf
Covation
Huntsman
Posco International America
Starchem Usa
Toray Industries (America)
Why It Matters
Sectors
Plastics & RubberTextilesPaints & CoatingsPaper & PrintingCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Industrial Uses
Used in 7 sectors as 6 functional roles.
- •Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
- •Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
- •Monomers in Printing Ink ManufacturingProcessing—repackaging
- •Monomers in Printing and Related Support ActivitiesProcessing—repackaging
- •Monomers in Textiles, apparel, and leather manufacturing (10%)Processing as a reactant
- •Adhesion/cohesion promoter in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
- •Solvent in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
- •Filler in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Monomers in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
- •Monomers in Paint and Coating ManufacturingProcessing as a reactant
- •Binder in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
$0.01/gAngene Chemical
CountryChina (registered: Hong Kong)
Pack$7.00 / 500 g
Purity99%
Vendors22 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
21 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.04 | 500 g | 98% |
| A2B Chem LLC | United States | $0.04 | 500 g | 98% |
| Chemscene | United States | $0.05 | 1 kg | — |
| Fluorochem EU | Germany | $0.07 | 500 g | 95% |
| Angene International Limited | United States | $0.07 | 500 g | 98% |
| AK Scientific Specialized | United States | $0.08 | 500 g | 98% |
| Fluorochem UK | United Kingdom | $0.09 | 100 g | 95% |
| Ambeed, Inc. | United States | $0.11 | 1 kg | 95% |
| ALFA AESAR | Germany | $0.11 | 250 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.12 | 500 g | 98% |
| Sigma-Aldrich | Germany | $0.12 | 500 g | 98% |
| AK Scientific, Inc. | United States | $0.14 | 500 g | 99% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 95% |
| Aldlab | United States | $0.44 | 25 g | 95% |
| MedChemExpress MCE | Sweden | $1.62 | 50 g | 99.99% |
| AstaTech (2 weeks) | United States | $2.40 | 25 g | 95% |
| Specs | Netherlands | $68.97 | 10 g | 90% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Otava, Ltd. | Ukraine | $2724.00 | 50 mg | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 99% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 95% |
Chemical Identity
CAS100-21-0
PubChem CID7489
DTXSIDDTXSID6026080
FormulaC8H6O4
Mol. Weight166.13 g/mol
SMILESC1=CC(=CC=C1C(=O)O)C(=O)O
Data Sources
- EPA CompTox (DSSTox) · DTXSID6026080Retrieved 2026-04-06
- PubChem · compound 7489Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Terephthalic acid (CAS 100-21-0) https://chemicalindependence.com/chemical/100-21-0/ EPA CompTox (DSSTox): DTXSID6026080. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6026080 PubChem: 7489. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7489 EPA Chemical Data Reporting: 100-21-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 100-21-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291736 for CAS 100-21-0. Reporting year: 2024. https://usatrade.census.gov/