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Diisononyl phthalate

CAS 28553-12-0

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

Molecular structure of 28553-12-0
US productionCBI
Import value, 2024$83M
Top sourceGermany 68%

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 291733 · narrow

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

These shares come from HS customs code 291733, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 68%GermanyKR 13%South KoreaSE 8%SwedenTW 7%TaiwanCA 3%Canada
EPA-registered manufacturers (2)
Teknor Apex- Haywood
The Hallstar
Domestic parents -- activity not disclosed (8)
Allchem Industries Holding
Chemceed
Formosa Plastics Corporation, U.S.A.
Polyventive
Soyventis North America
Show all 8
Superior Industrial Solutions
The Chemical
Wego Chemical Group
EPA-registered importers (21)
Basf Se · DE Germany
Kh Chemicals International B V · NL Netherlands
Mercedes-Benz Ag · DE Germany
Ravago S A · LU Luxembourg
Safic-Alcan · FR France
Show all 21
Aalborz Chemical
Alac International
Basf
Cascade Columbia
Chemical Distribution Network
Chemspec
Dupont Specialty Products Usa
Henkel
Icc Industries
Kh Chemicals Na
Mercedes Benz U.S
Ravago Holdings America
Resonac America
Silver Fern Chemical
Tri-Iso
Tribute Energy

Why It Matters

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

Industrial Uses

Used in 14 sectors as 7 functional roles.

  • •Plasticizer in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Machinery Manufacturing (25%)Processing—incorporation into article
  • •Plasticizer in Transportation Equipment Manufacturing (20%)Processing—incorporation into article
  • •Plasticizer in Fabricated Metal Product Manufacturing (20%)Processing—incorporation into article
  • •Plasticizer in Computer and Electronic Product Manufacturing (25%)Processing—incorporation into article
  • •Plasticizer in Electrical Equipment, Appliance, and Component Manufacturing (10%)Processing—incorporation into article
  • •Plasticizer in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Polymerization promoter in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in ConstructionProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Synthetic Rubber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Custom Compounding of Purchased ResinsProcessing—incorporation into formulation, mixture, or reaction product
  • •Adhesion/cohesion promoter in Transportation Equipment Manufacturing (100%)Processing—incorporation into article
  • •Diluent in Transportation Equipment ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant
  • •Softener and conditioner in Textiles, apparel, and leather manufacturing (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

Vendor Pricing

$0.04/gA2B Chem LLC
CountryUnited States
Pack$18.00 / 500 g
Purity98%
Vendors12 available

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

11 more vendors
VendorCountry$/gPackPurity
Aaron Chemicals LLCHong Kong$0.04500 g98%
Angene ChemicalChina → Hong Kong$0.05500 g98%
ChemsceneUnited States$0.061 kg—
MedChemExpress MCESweden$0.161 kg98%
AA BLOCKSUnited States$0.17100 g98%
AK Scientific, Inc.United States$0.67100 g99%
Angene International LimitedUnited States$1.39100 g99%
AstaTech (2 weeks)United States$3.6825 g95%
AngeneChina → Hong Kong$4266.6730 mg98%
Sigma-Aldrich (Rush Stock)Germany$4501.0050 mg—
Sigma-AldrichGermany$4501.0050 mg—

Chemical Identity

CAS28553-12-0
PubChem CID590836
DTXSIDDTXSID4022521
FormulaC26H42O4
Mol. Weight418.6 g/mol
SMILESCC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C

Data Sources

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Brief citations

Diisononyl phthalate (CAS 28553-12-0) https://chemicalindependence.com/chemical/28553-12-0/ EPA CompTox (DSSTox): DTXSID4022521. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4022521 PubChem: 590836. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/590836 EPA Chemical Data Reporting: 28553-12-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 28553-12-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291733 for CAS 28553-12-0. Reporting year: 2024. https://usatrade.census.gov/