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Isophorone diisocyanate

CAS 4098-71-9

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

Molecular structure of 4098-71-9
US productionCBI
Import value, 2024$171M
Top sourceHungary 35%

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 292910 · basket

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

These shares come from HS customs code 292910, which covers 57 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
HU 35%HungaryDE 20%GermanyIT 15%ItalyCN 8%ChinaES 7%Spain
EPA-registered manufacturers (2)
Covestro
Evonik
EPA-registered importers (4)
Vencorex Holding · FR France
Miwon Specialty Chemical Usa
Vencorex Us
Wanhua Chemical America

Why It Matters

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

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • •Adhesion/cohesion promoter in Paint and Coating Manufacturing (9%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Plastics Material and Resin Manufacturing (46%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Paint and Coating Manufacturing (34%)Processing as a reactant
  • •Intermediate in All Other Basic Organic Chemical Manufacturing (18%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Paint and Coating Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.23/gAK Scientific Specialized
CountryUnited States
Pack$114.00 / 500 g
Purity95%
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
AK Scientific, Inc.United States$0.30500 g98%
ALFA AESARGermany$0.47100 g98%

Chemical Identity

CAS4098-71-9
PubChem CID169132
DTXSIDDTXSID0023826
FormulaC12H18N2O2
Mol. Weight222.28 g/mol
SMILESCC1(CC(CC(C1)(C)CN=C=O)N=C=O)C

Data Sources

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Brief citations

Isophorone diisocyanate (CAS 4098-71-9) https://chemicalindependence.com/chemical/4098-71-9/ EPA CompTox (DSSTox): DTXSID0023826. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0023826 PubChem: 169132. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/169132 EPA Chemical Data Reporting: 4098-71-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 4098-71-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292910 for CAS 4098-71-9. Reporting year: 2024. https://usatrade.census.gov/