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Trimellitic anhydride

CAS 552-30-7

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

Molecular structure of 552-30-7
US productionCBI
Import value, 2024$316M
Top sourceSouth Korea 19%

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 291739 · basket

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

These shares come from HS customs code 291739, which covers 103 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 19%South KoreaCN 19%ChinaIN 18%IndiaES 13%SpainCA 9%Canada
EPA-registered manufacturers (2)
Ineos Enterprises Holdings New · GB United Kingdom
Ineos Enterprises Us Hold
Domestic parents -- activity not disclosed (5)
Aalborz Chemical
Allnex Usa
Catalynt Solutions
Essex Furukawa Magnet Wire Usa
Icc Industries
EPA-registered importers (8)
Kao · JP Japan
Arkema
Elantas Pdg
Huntsman
Kao America
Show all 8
Polynt Composites Usa
Teknor Apex
Wego Chemical Group

Why It Matters

Sectors
Plastics & RubberPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 3 functional roles.

  • •Monomers in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (10%)Processing as a reactant
  • •Intermediate in All Other Basic Organic Chemical Manufacturing (65%)Processing as a reactant
  • •Intermediate in Plastics Material and Resin Manufacturing (90%)Processing as a reactant
  • •Hardener in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$9.00 / 500 g
Purity95%
Vendors20 available

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

19 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.02500 g95%
A2B Chem LLCUnited States$0.04500 g97%
AA BLOCKSUnited States$0.05500 g97%
ALFA AESARGermany$0.071 kg97%
AstaTech, IncUnited States$0.10500 g95%
Fluorochem EUGermany$0.11100 g95%
Fluorochem UKUnited Kingdom$0.11100 g95%
Sigma-Aldrich (Rush Stock)Germany$0.151 kg97%
Sigma-AldrichGermany$0.151 kg97%
AK Scientific SpecializedUnited States$0.15500 g95%
AK Scientific, Inc.United States$0.20500 g98%
Combi-Blocks, Inc.United States$0.251 kg97%
Angene International LimitedUnited States$0.38500 g98%
InterbioscreenHong Kong$10.0010 g95%
Labotest KGGermany$217.805000 mg90%
Otava, Ltd.Ukraine$460.00250 mg95%
AngeneChina → Hong Kong$4266.6730 mg95%
Vitas M Chemical LimitedHong Kong$14000.005 mg90%
Princeton BioMolecular Research (SC)United States$18000.005 mg90%

Chemical Identity

CAS552-30-7
PubChem CID11089
DTXSIDDTXSID7026235
FormulaC9H4O5
Mol. Weight192.12 g/mol
SMILESC1=CC2=C(C=C1C(=O)O)C(=O)OC2=O

Data Sources

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Brief citations

Trimellitic anhydride (CAS 552-30-7) https://chemicalindependence.com/chemical/552-30-7/ EPA CompTox (DSSTox): DTXSID7026235. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7026235 PubChem: 11089. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11089 EPA Chemical Data Reporting: 552-30-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 552-30-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 552-30-7. Reporting year: 2024. https://usatrade.census.gov/