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Tris(2-ethylhexyl) trimellitate

CAS 3319-31-1

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

Molecular structure of 3319-31-1
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 (1)
Teknor Apex- Haywood
Domestic parents -- activity not disclosed (3)
Greenchem Industries
M.A.Global Resources
The Chemical
EPA-registered importers (15)
Basf Se · DE Germany
Kh Chemicals International B V · NL Netherlands
Lg Chem · KR South Korea
Orbia Advance Corp S A B De C V · MX Mexico
Safic-Alcan · FR France
Show all 15
Alac International
Alphagary
Basf
Chemspec
Kh Chemicals Na
Lg Chem America
Mak Chemicals
Polymer Additives
Soyventis North America
Tribute Energy

Why It Matters

Sectors
ElectronicsTransportationConstructionMetals & MiningPlastics & RubberConsumer ProductsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 13 sectors as 7 functional roles.

  • •Plasticizer in ConstructionProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Plastics Product ManufacturingProcessing—incorporation into article
  • •Plasticizer in Electrical Equipment, Appliance, and Component Manufacturing (22%)Processing—incorporation into article
  • •Plasticizer in Custom Compounding of Purchased Resins (17%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Fabricated Metal Product Manufacturing (3%)Processing—incorporation into article
  • •Plasticizer in Wholesale and Retail Trade (17%)Processing—repackaging
  • •Plasticizer in Plastics Material and Resin Manufacturing (66%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Computer and Electronic Product Manufacturing (21%)Processing—incorporation into article
  • •Plating agent in Transportation Equipment Manufacturing (1%)Processing—incorporation into article
  • •Plasticizer in Primary Metal Manufacturing (54%)Processing—incorporation into article
  • •Plasticizer in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Synthetic Rubber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Lubricating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Softener and conditioner in Custom Compounding of Purchased Resins (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (0%)Processing as a reactant
  • •Pigment in Plastics Material and Resin Manufacturing (0%)Processing—incorporation into article

Vendor Pricing

$0.03/gBLD Pharmatech GmbH
CountryGermany
Pack$29.00 / 1 kg
Purity98%
Vendors9 available

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

8 more vendors
VendorCountry$/gPackPurity
BLD Pharmatech Ltd.China$0.031 kg98%
BLD Pharmatech Co., LimitedUnited States$0.111 kg98%
Ambeed, Inc.United States$0.111 kg98%
MedChemExpress MCESweden$0.131 kg99.94%
Combi-Blocks, Inc.United States$0.251 kg97%
AstaTech (2 weeks)United States$0.56100 g95%
AK Scientific, Inc.United States$0.57100 g98%
AK Scientific SpecializedUnited States$0.9225 g95%

Chemical Identity

CAS3319-31-1
PubChem CID18725
DTXSIDDTXSID9026265
FormulaC33H54O6
Mol. Weight546.8 g/mol
SMILESCCCCC(CC)COC(=O)C1=CC(=C(C=C1)C(=O)OCC(CC)CCCC)C(=O)OCC(CC)CCCC

Data Sources

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Brief citations

Tris(2-ethylhexyl) trimellitate (CAS 3319-31-1) https://chemicalindependence.com/chemical/3319-31-1/ EPA CompTox (DSSTox): DTXSID9026265. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9026265 PubChem: 18725. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/18725 EPA Chemical Data Reporting: 3319-31-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3319-31-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 3319-31-1. Reporting year: 2024. https://usatrade.census.gov/