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Toluene 2,4-diisocyanate

CAS 584-84-9

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

Molecular structure of 584-84-9
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 (3)
Basf Se · DE Germany
Basf
Covestro
Domestic parents -- activity not disclosed (4)
Catalynt Solutions
Dow Chemical
Fci
Silver Fern Chemical
EPA-registered importers (6)
Azelis S A · LU Luxembourg
Basf Se · DE Germany
Era Polymers International Usa Pty · AU Australia
Azelis Us Holdings
Era Polymers
Show all 6
Wanhua Chemical America

Why It Matters

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

Industrial Uses

Used in 6 sectors as 4 functional roles.

  • •Monomers in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
  • •Lubricating agent in Wholesale and Retail Trade (100%)Not Known or Reasonably Ascertainable
  • •Adhesion/cohesion promoter in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Miscellaneous ManufacturingProcessing as a reactant
  • •Monomers in Synthetic Rubber Manufacturing (100%)Processing as a reactant
  • •Monomers in Furniture and Related Product ManufacturingProcessing—incorporation into article
  • •Foamant in Furniture and Related Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.10/gALFA AESAR
CountryGermany
Pack$100.80 / 1 kg
Purity80%
Vendors5 available

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

4 more vendors
VendorCountry$/gPackPurity
Sigma-Aldrich (Rush Stock)Germany$0.111 kg80%
Sigma-AldrichGermany$0.111 kg80%
AK Scientific, Inc.United States$0.41100 g98%
MedKoo Biosciences, IncUnited States$14.0025 g98%

Chemical Identity

CAS584-84-9
PubChem CID11443
DTXSIDDTXSID7026156
FormulaC9H6N2O2
Mol. Weight174.16 g/mol
SMILESCC1=C(C=C(C=C1)N=C=O)N=C=O

Data Sources

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Brief citations

Toluene 2,4-diisocyanate (CAS 584-84-9) https://chemicalindependence.com/chemical/584-84-9/ EPA CompTox (DSSTox): DTXSID7026156. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7026156 PubChem: 11443. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11443 EPA Chemical Data Reporting: 584-84-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 584-84-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292910 for CAS 584-84-9. Reporting year: 2024. https://usatrade.census.gov/